This document contains 8 questions related to fluid mechanics and heat transfer for a B.Tech exam. The questions cover various topics including:
1) Definitions of terms like bulk modulus, viscosity, stream function, and momentum equation.
2) Calculations involving power required to overcome viscous resistance, velocity and velocity potential, force on a pipe bend.
3) Derivations of equations for head loss in pipes, heat loss from a hollow sphere, film heat transfer coefficient, and effectiveness of a counterflow heat exchanger.
4) Problems involving determination of pipe diameter required to supply water to a city, heat loss from an insulated pipe, Reynolds number, and temperatures at the outlets of a
This document provides short questions and answers related to gas dynamics and jet propulsion for a 6th semester mechanical engineering course. It covers topics like basic concepts of compressible flow, stagnation properties, flow through nozzles and diffusers, and flow through ducts. The questions define key terms, derive important equations, and ask students to analyze example problems involving isentropic flow of air through nozzles and ducts. The document aims to test students' understanding of fundamental compressible flow concepts and their ability to apply equations of compressible flow to practical problems.
The document contains questions related to gas dynamics and jet propulsion. It covers topics such as compressible and incompressible fluids, stagnation pressure and temperature, Mach number, zones of action and silence, open and closed systems, intensive and extensive properties, shock waves, normal and oblique shocks, jet and rocket propulsion, rocket engine classifications, specific impulse, specific consumption, thrust coefficient, propulsive efficiency, Fanno and Rayleigh flows, and one-dimensional isentropic flow through nozzles, ducts, and diffusers. The questions range from definitions and differentiations to derivations and multi-step calculations involving isentropic flow equations.
This document contains 51 short answer questions related to aerodynamics and compressible flow. The questions cover topics like gas dynamics, compressible versus incompressible flow, compressibility, types of compressibility, properties of perfect gases, adiabatic and isentropic processes, Mach number, flow regimes, continuity, momentum, and energy equations. Many questions also focus specifically on nozzle flow, including definitions of different types of nozzles, choking, expansion, under-expanded versus over-expanded nozzles, and nozzle efficiency.
This document outlines the contents of the course ME 6604 Gas Dynamics and Jet Propulsion. It contains 5 units:
1. Basic concepts and isentropic flows, including concepts of compressible flow, stagnation properties, and flow through nozzles and diffusers.
2. Flow through ducts, including Fanno flow with friction and Rayleigh flow with heat transfer.
3. Normal and oblique shocks, including governing equations and properties across shock waves.
4. Jet propulsion, including theories of jet propulsion and performance of ramjets, turbojets, turbofans and turboprops.
5. Space propulsion, including rocket propulsion principles, types of rocket
Gas dynamics and_jet_propulsion- questions & answesManoj Kumar
1. The document discusses compressible and incompressible fluid flow, defining key terms like Mach number and stagnation state. It also provides equations for adiabatic energy, stagnation pressure and temperature, and Prandtl-Meyer relation.
2. Various regions of compressible flow are defined based on the Mach number, including incompressible, subsonic, transonic, supersonic, and hypersonic. Normal and oblique shock waves are also discussed.
3. Examples of where Fanno flow occurs are given as gas ducts in aircraft engines and air conditioning ducts. Fanno flow is steady, one-dimensional flow with friction but no heat transfer.
Unit - I BASIC CONCEPTS AND ISENTROPIC FLOW IN VARIABLE AREA DUCTSsureshkcet
This document discusses gas dynamics and jet propulsion. It covers fundamental concepts of compressible flow, including the energy and momentum equations. It also discusses isentropic flow through variable area ducts like nozzles and diffusers. The conservation of mass, momentum and energy are applied to one-dimensional, steady, inviscid flow. The flow is analyzed through a variable area duct and expressions are developed relating pressure, velocity, temperature and Mach number for a perfect gas. Frictional flow in a constant area duct is also analyzed.
Air enters a combustion chamber with a mach number of 0.15. Sufficient heat is added to raise the stagnation temperature ratio to 3 and the final mach number is 0.8. To determine:
1) The entry mach number is 0.15
2) Due to heating, the static pressure decreases along the flow. The percentage loss in static pressure needs to be determined.
3) The properties of air (γ, Cp) are given to solve the problem.
This document provides short questions and answers related to gas dynamics and jet propulsion for a 6th semester mechanical engineering course. It covers topics like basic concepts of compressible flow, stagnation properties, flow through nozzles and diffusers, and flow through ducts. The questions define key terms, derive important equations, and ask students to analyze example problems involving isentropic flow of air through nozzles and ducts. The document aims to test students' understanding of fundamental compressible flow concepts and their ability to apply equations of compressible flow to practical problems.
The document contains questions related to gas dynamics and jet propulsion. It covers topics such as compressible and incompressible fluids, stagnation pressure and temperature, Mach number, zones of action and silence, open and closed systems, intensive and extensive properties, shock waves, normal and oblique shocks, jet and rocket propulsion, rocket engine classifications, specific impulse, specific consumption, thrust coefficient, propulsive efficiency, Fanno and Rayleigh flows, and one-dimensional isentropic flow through nozzles, ducts, and diffusers. The questions range from definitions and differentiations to derivations and multi-step calculations involving isentropic flow equations.
This document contains 51 short answer questions related to aerodynamics and compressible flow. The questions cover topics like gas dynamics, compressible versus incompressible flow, compressibility, types of compressibility, properties of perfect gases, adiabatic and isentropic processes, Mach number, flow regimes, continuity, momentum, and energy equations. Many questions also focus specifically on nozzle flow, including definitions of different types of nozzles, choking, expansion, under-expanded versus over-expanded nozzles, and nozzle efficiency.
This document outlines the contents of the course ME 6604 Gas Dynamics and Jet Propulsion. It contains 5 units:
1. Basic concepts and isentropic flows, including concepts of compressible flow, stagnation properties, and flow through nozzles and diffusers.
2. Flow through ducts, including Fanno flow with friction and Rayleigh flow with heat transfer.
3. Normal and oblique shocks, including governing equations and properties across shock waves.
4. Jet propulsion, including theories of jet propulsion and performance of ramjets, turbojets, turbofans and turboprops.
5. Space propulsion, including rocket propulsion principles, types of rocket
Gas dynamics and_jet_propulsion- questions & answesManoj Kumar
1. The document discusses compressible and incompressible fluid flow, defining key terms like Mach number and stagnation state. It also provides equations for adiabatic energy, stagnation pressure and temperature, and Prandtl-Meyer relation.
2. Various regions of compressible flow are defined based on the Mach number, including incompressible, subsonic, transonic, supersonic, and hypersonic. Normal and oblique shock waves are also discussed.
3. Examples of where Fanno flow occurs are given as gas ducts in aircraft engines and air conditioning ducts. Fanno flow is steady, one-dimensional flow with friction but no heat transfer.
Unit - I BASIC CONCEPTS AND ISENTROPIC FLOW IN VARIABLE AREA DUCTSsureshkcet
This document discusses gas dynamics and jet propulsion. It covers fundamental concepts of compressible flow, including the energy and momentum equations. It also discusses isentropic flow through variable area ducts like nozzles and diffusers. The conservation of mass, momentum and energy are applied to one-dimensional, steady, inviscid flow. The flow is analyzed through a variable area duct and expressions are developed relating pressure, velocity, temperature and Mach number for a perfect gas. Frictional flow in a constant area duct is also analyzed.
Air enters a combustion chamber with a mach number of 0.15. Sufficient heat is added to raise the stagnation temperature ratio to 3 and the final mach number is 0.8. To determine:
1) The entry mach number is 0.15
2) Due to heating, the static pressure decreases along the flow. The percentage loss in static pressure needs to be determined.
3) The properties of air (γ, Cp) are given to solve the problem.
This document discusses the treatment of compressible flow in computational fluid dynamics (CFD). It covers the basics of compressible flow including conservation laws, the governing equations in conservation form, and the wave theory known as the CFL condition. It also discusses schemes for solving the equations, including flux vector splitting schemes, Roe averaged schemes, and AUSM schemes. The document emphasizes that compressible flow equations are hyperbolic and describes how characteristics and eigenvalues relate to the equation types.
This document outlines key concepts in gas dynamics and compressible flow. It defines gas dynamics as the branch of fluid dynamics concerned with compressible flow. Some main topics covered include the fundamental laws of thermodynamics, definitions of basic terms like system and state, and equations for the conservation of mass, momentum and energy. It also discusses different types of flow and processes like steady/unsteady, laminar/turbulent and adiabatic. Stagnation properties of gases are defined using equations relating stagnation temperature, pressure and density to static properties.
This document contains 73 comments on "Fluid Mechanics Fundamentals and Applications" by Yunus Cengel and Michael Boles. The comments note typos, provide suggestions to improve clarity or accuracy, and point out places where figures or explanations could be enhanced. Suggestions include rephrasing sentences for correctness, modifying figures, and adding mathematical definitions or explanations for concepts like the Leibnitz theorem before applying it. The goal of the comments is to refine the technical details and explanations provided in the textbook.
The document discusses control volume analysis and the conservation laws applied to control volumes, including:
- Conservation of mass for fixed, moving, and deforming control volumes
- Linear momentum (Newton's second law) for fixed control volumes
- The energy equation for fixed control volumes, including work, heat transfer, and applications to steady, incompressible flow
- An example problem calculating the work output of steam passing through a turbine using the energy equation
This document discusses compressible flow through variable area ducts. Part A covers fundamentals of compressible flow including concepts like Mach number. Part B focuses on isentropic flow through nozzles and diffusers. The conservation equations for mass, momentum and energy are applied to one-dimensional, steady, inviscid flow. For frictional flow in a constant area duct, the shear stress term is included. The resulting differential equations are solved for a perfect gas.
This document contains solutions to problems from Chapter 3 of the textbook "Fluid Mechanics: Fundamentals and Applications" by Çengel & Cimbala. The chapter discusses pressure and fluid statics. The solutions cover topics such as absolute versus gauge pressure, pressure measurements using manometers and barometers, and pressure variations in fluids with depth. The document is the proprietary property of McGraw-Hill and is only to be used by authorized instructors for class preparation.
This document provides a course plan for a class on Gas Dynamics and Jet Propulsion taught by Mr. R. Deepak at KIT-Kalaignar Karunanidhi Institute of Technology. The course covers 5 units: basic concepts and isentropic flows, flow through ducts, normal and oblique shocks, jet propulsion, and space propulsion. The course aims to help students understand compressible flow, shock waves, and jet and rocket propulsion. It includes learning objectives, outcomes, assignments, exams, reference materials and an evaluation plan following Anna University guidelines.
Dimension less numbers in applied fluid mechanicstirath prajapati
In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned. It is also known as a bare number or pure number or a quantity of dimension one[1] and the corresponding unit of measurement in the SI is one (or 1) unit[2][3] and it is not explicitly shown. Dimensionless quantities are widely used in many fields, such as mathematics, physics, chemistry, engineering, and economics. Examples of quantities, to which dimensions are regularly assigned, are length, time, and speed, which are measured in dimensional units, such as meter , second and meter per second. This is considered to aid intuitive understanding. However, especially in mathematical physics, it is often more convenient to drop the assignment of explicit dimensions and express the quantities without dimensions, e.g., addressing the speed of light simply by the dimensionless number 1.
This document provides solutions to problems from Chapter 4 of the textbook "Fluid Mechanics: Fundamentals and Applications" by Çengel & Cimbala. The chapter covers fluid kinematics. The solutions solve problems related to defining kinematics and fluid kinematics, calculating centerline speed through a nozzle, finding stagnation points in velocity fields, comparing Lagrangian and Eulerian descriptions of fluid motion, calculating material acceleration and the rate of change of pressure following a fluid particle.
1. The document discusses several fundamental equations in fluid mechanics, including conservation of mass, momentum, energy, and angular momentum for control volumes.
2. Key equations presented include the Reynolds transport theorem, Bernoulli equation, and equations for conservation of mass, momentum, energy, and angular momentum derived using the transport theorem.
3. Examples are provided to demonstrate applying the conservation equations to problems involving steady and unsteady, compressible and incompressible flow.
Compressible flows in fluid mechanics in chemical engineeringUsman Shah
This slide will explain you the chemical engineering terms .Al about the basics of this slide are explain in it. The basics of fluid mechanics, heat transfer, chemical engineering thermodynamics, fluid motions, newtonian fluids, are explain in this process.
assignment 1 properties of fluids-Fluid mechanicsasghar123456
The document contains 6 physics questions regarding properties of fluids. Question 1 asks about pressure in a water pipe using a manometer. Question 2 involves using the ideal gas law to determine pressure and mass of air in a tire at different temperatures. Question 3 calculates residual pressure in a tank with two chambers connected by a sluice opening.
1) The document provides solutions to problems involving pressure distributions in fluids. It calculates normal and shear stresses on a plane cutting through a two-dimensional stress field.
2) It also calculates pressures, stresses, and fluid levels at various points in systems involving combinations of fluids such as water, oil, air and mercury.
3) The problems require use of concepts such as hydrostatic pressure, stress and normal/shear stress relationships, and properties of various fluids to determine unknown values at different points in the systems.
Professor Alvaro Valencia from the University of Chile studied laminar unsteady flow and heat transfer in a confined channel with square bars arranged side by side through numerical simulation. The study categorized flow patterns into three regimes based on the bar separation distance and examined the effects on pressure drop, heat transfer, and vortex shedding frequency. Results showed that local and overall heat transfer on channel walls increased significantly due to unsteady vortex shedding induced by the bars.
This document contains 6 practice problems related to fluid mechanics:
1) Calculating the specific gravity of a fluid given tank pressures
2) Finding the angle of tilt of a tube open to the atmosphere
3) Calculating pressures at different points in a system of connected containers and cavities
4) Determining the differential height of a mercury column given an air pressure
5) Finding air pressure and equilibrium mercury levels in a tank with multiple fluids
6) Calculating the amplification factor of a manometer setup using oil instead of water.
The document provides an introduction to fluid dynamics and fluid mechanics. It defines key fluid properties like density, viscosity, pressure and discusses the continuum hypothesis. It also introduces important concepts like the Navier-Stokes equations, Bernoulli's equation, Reynolds number, and divergence. Applications of fluid mechanics in various engineering fields are also highlighted.
This document discusses compressible flow through nozzles. It introduces concepts like stagnation properties, Mach number, and speed of sound. It then derives relationships for isentropic flow of ideal gases through converging and converging-diverging nozzles. The effects of area changes and back pressure on properties like pressure, temperature, density and mass flow rate are examined for both subsonic and supersonic flow regimes. Nozzle design considerations like shapes needed to achieve desired exit velocities are also covered.
This 3-sentence summary provides the key information from the document:
The document summarizes a lab experiment on the energy equation for open channel flows. Students derived the specific energy equation and showed that critical depth is a function of flow per width. Data tables show critical depths calculated for two different flow rates, and graphs plot the depth-energy relationships. Calculated critical depths matched theoretical values with small differences likely due to measurement errors.
This document contains worked solutions to three hydraulics problems. In problem 1, the author calculates flow rates and forces in a channel. They find a flow rate of 58.8 m/s and a force of 538 N. Problem 2 involves calculating velocities and pressures in a siphon, finding velocities of 7.67 m/s and a gauge pressure of -54.9 kPa. For part b, they calculate the exit level is 25.8 m below the surface. Problem 3 parts a and b involve calculating flow rates in pipes, finding rates of 71.6 L/s and 0.05 m3/s respectively, and the head required by a pump of 61.6 m.
El documento proporciona información sobre el sistema nervioso humano y el proceso de aprendizaje. 1) El sistema nervioso es el dispositivo más complejo de la naturaleza y controla todos los procesos del cuerpo. 2) El aprendizaje es un proceso que afecta el comportamiento y permite la reorganización del mismo. 3) La memoria y la motivación son dispositivos básicos fundamentales para el aprendizaje.
El documento describe varias pruebas y aspectos relacionados con la percepción y el desarrollo de habilidades motrices y cognitivas en niños. Explica el Reversal Test, que mide la madurez en la lectoescritura en niños de 6 años evaluando su capacidad para identificar figuras iguales y diferentes. También discute conceptos como la discriminación perceptiva, la integración sensorial, la coordinación visuomotora y la memoria auditiva secuencial.
This document discusses the treatment of compressible flow in computational fluid dynamics (CFD). It covers the basics of compressible flow including conservation laws, the governing equations in conservation form, and the wave theory known as the CFL condition. It also discusses schemes for solving the equations, including flux vector splitting schemes, Roe averaged schemes, and AUSM schemes. The document emphasizes that compressible flow equations are hyperbolic and describes how characteristics and eigenvalues relate to the equation types.
This document outlines key concepts in gas dynamics and compressible flow. It defines gas dynamics as the branch of fluid dynamics concerned with compressible flow. Some main topics covered include the fundamental laws of thermodynamics, definitions of basic terms like system and state, and equations for the conservation of mass, momentum and energy. It also discusses different types of flow and processes like steady/unsteady, laminar/turbulent and adiabatic. Stagnation properties of gases are defined using equations relating stagnation temperature, pressure and density to static properties.
This document contains 73 comments on "Fluid Mechanics Fundamentals and Applications" by Yunus Cengel and Michael Boles. The comments note typos, provide suggestions to improve clarity or accuracy, and point out places where figures or explanations could be enhanced. Suggestions include rephrasing sentences for correctness, modifying figures, and adding mathematical definitions or explanations for concepts like the Leibnitz theorem before applying it. The goal of the comments is to refine the technical details and explanations provided in the textbook.
The document discusses control volume analysis and the conservation laws applied to control volumes, including:
- Conservation of mass for fixed, moving, and deforming control volumes
- Linear momentum (Newton's second law) for fixed control volumes
- The energy equation for fixed control volumes, including work, heat transfer, and applications to steady, incompressible flow
- An example problem calculating the work output of steam passing through a turbine using the energy equation
This document discusses compressible flow through variable area ducts. Part A covers fundamentals of compressible flow including concepts like Mach number. Part B focuses on isentropic flow through nozzles and diffusers. The conservation equations for mass, momentum and energy are applied to one-dimensional, steady, inviscid flow. For frictional flow in a constant area duct, the shear stress term is included. The resulting differential equations are solved for a perfect gas.
This document contains solutions to problems from Chapter 3 of the textbook "Fluid Mechanics: Fundamentals and Applications" by Çengel & Cimbala. The chapter discusses pressure and fluid statics. The solutions cover topics such as absolute versus gauge pressure, pressure measurements using manometers and barometers, and pressure variations in fluids with depth. The document is the proprietary property of McGraw-Hill and is only to be used by authorized instructors for class preparation.
This document provides a course plan for a class on Gas Dynamics and Jet Propulsion taught by Mr. R. Deepak at KIT-Kalaignar Karunanidhi Institute of Technology. The course covers 5 units: basic concepts and isentropic flows, flow through ducts, normal and oblique shocks, jet propulsion, and space propulsion. The course aims to help students understand compressible flow, shock waves, and jet and rocket propulsion. It includes learning objectives, outcomes, assignments, exams, reference materials and an evaluation plan following Anna University guidelines.
Dimension less numbers in applied fluid mechanicstirath prajapati
In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned. It is also known as a bare number or pure number or a quantity of dimension one[1] and the corresponding unit of measurement in the SI is one (or 1) unit[2][3] and it is not explicitly shown. Dimensionless quantities are widely used in many fields, such as mathematics, physics, chemistry, engineering, and economics. Examples of quantities, to which dimensions are regularly assigned, are length, time, and speed, which are measured in dimensional units, such as meter , second and meter per second. This is considered to aid intuitive understanding. However, especially in mathematical physics, it is often more convenient to drop the assignment of explicit dimensions and express the quantities without dimensions, e.g., addressing the speed of light simply by the dimensionless number 1.
This document provides solutions to problems from Chapter 4 of the textbook "Fluid Mechanics: Fundamentals and Applications" by Çengel & Cimbala. The chapter covers fluid kinematics. The solutions solve problems related to defining kinematics and fluid kinematics, calculating centerline speed through a nozzle, finding stagnation points in velocity fields, comparing Lagrangian and Eulerian descriptions of fluid motion, calculating material acceleration and the rate of change of pressure following a fluid particle.
1. The document discusses several fundamental equations in fluid mechanics, including conservation of mass, momentum, energy, and angular momentum for control volumes.
2. Key equations presented include the Reynolds transport theorem, Bernoulli equation, and equations for conservation of mass, momentum, energy, and angular momentum derived using the transport theorem.
3. Examples are provided to demonstrate applying the conservation equations to problems involving steady and unsteady, compressible and incompressible flow.
Compressible flows in fluid mechanics in chemical engineeringUsman Shah
This slide will explain you the chemical engineering terms .Al about the basics of this slide are explain in it. The basics of fluid mechanics, heat transfer, chemical engineering thermodynamics, fluid motions, newtonian fluids, are explain in this process.
assignment 1 properties of fluids-Fluid mechanicsasghar123456
The document contains 6 physics questions regarding properties of fluids. Question 1 asks about pressure in a water pipe using a manometer. Question 2 involves using the ideal gas law to determine pressure and mass of air in a tire at different temperatures. Question 3 calculates residual pressure in a tank with two chambers connected by a sluice opening.
1) The document provides solutions to problems involving pressure distributions in fluids. It calculates normal and shear stresses on a plane cutting through a two-dimensional stress field.
2) It also calculates pressures, stresses, and fluid levels at various points in systems involving combinations of fluids such as water, oil, air and mercury.
3) The problems require use of concepts such as hydrostatic pressure, stress and normal/shear stress relationships, and properties of various fluids to determine unknown values at different points in the systems.
Professor Alvaro Valencia from the University of Chile studied laminar unsteady flow and heat transfer in a confined channel with square bars arranged side by side through numerical simulation. The study categorized flow patterns into three regimes based on the bar separation distance and examined the effects on pressure drop, heat transfer, and vortex shedding frequency. Results showed that local and overall heat transfer on channel walls increased significantly due to unsteady vortex shedding induced by the bars.
This document contains 6 practice problems related to fluid mechanics:
1) Calculating the specific gravity of a fluid given tank pressures
2) Finding the angle of tilt of a tube open to the atmosphere
3) Calculating pressures at different points in a system of connected containers and cavities
4) Determining the differential height of a mercury column given an air pressure
5) Finding air pressure and equilibrium mercury levels in a tank with multiple fluids
6) Calculating the amplification factor of a manometer setup using oil instead of water.
The document provides an introduction to fluid dynamics and fluid mechanics. It defines key fluid properties like density, viscosity, pressure and discusses the continuum hypothesis. It also introduces important concepts like the Navier-Stokes equations, Bernoulli's equation, Reynolds number, and divergence. Applications of fluid mechanics in various engineering fields are also highlighted.
This document discusses compressible flow through nozzles. It introduces concepts like stagnation properties, Mach number, and speed of sound. It then derives relationships for isentropic flow of ideal gases through converging and converging-diverging nozzles. The effects of area changes and back pressure on properties like pressure, temperature, density and mass flow rate are examined for both subsonic and supersonic flow regimes. Nozzle design considerations like shapes needed to achieve desired exit velocities are also covered.
This 3-sentence summary provides the key information from the document:
The document summarizes a lab experiment on the energy equation for open channel flows. Students derived the specific energy equation and showed that critical depth is a function of flow per width. Data tables show critical depths calculated for two different flow rates, and graphs plot the depth-energy relationships. Calculated critical depths matched theoretical values with small differences likely due to measurement errors.
This document contains worked solutions to three hydraulics problems. In problem 1, the author calculates flow rates and forces in a channel. They find a flow rate of 58.8 m/s and a force of 538 N. Problem 2 involves calculating velocities and pressures in a siphon, finding velocities of 7.67 m/s and a gauge pressure of -54.9 kPa. For part b, they calculate the exit level is 25.8 m below the surface. Problem 3 parts a and b involve calculating flow rates in pipes, finding rates of 71.6 L/s and 0.05 m3/s respectively, and the head required by a pump of 61.6 m.
El documento proporciona información sobre el sistema nervioso humano y el proceso de aprendizaje. 1) El sistema nervioso es el dispositivo más complejo de la naturaleza y controla todos los procesos del cuerpo. 2) El aprendizaje es un proceso que afecta el comportamiento y permite la reorganización del mismo. 3) La memoria y la motivación son dispositivos básicos fundamentales para el aprendizaje.
El documento describe varias pruebas y aspectos relacionados con la percepción y el desarrollo de habilidades motrices y cognitivas en niños. Explica el Reversal Test, que mide la madurez en la lectoescritura en niños de 6 años evaluando su capacidad para identificar figuras iguales y diferentes. También discute conceptos como la discriminación perceptiva, la integración sensorial, la coordinación visuomotora y la memoria auditiva secuencial.
Exposición - Sensopercepciones; Trastornos, signos y síntomas.Marco Salazar
Este documento describe los conceptos de sensación, percepción y sensopercepción, así como los trastornos sensoperceptivos. Explica que la sensación es el estímulo físico desde los órganos receptores, mientras que la percepción es el estímulo percibido por el cerebro. Luego describe las alteraciones cuantitativas como la hiperestesia, hipoestesia y anestesia, y las cualitativas como alucinaciones, pseudoalucinaciones e ilusiones. Finalmente, detalla los diferentes tipos de alucinaciones
El documento describe los procesos fundamentales del aprendizaje, incluyendo el aprendizaje normal, pedagógico y fisiológico. Explica que el aprendizaje implica una reorganización conductual y depende de procesos neurofisiológicos como la motivación, atención, memoria y habituación. También describe funciones cerebrales superiores como las gnoxiás, praxias y lenguaje, las cuales sustentan formas de comportamiento humano y son el resultado de aprendizajes previos.
Este documento define los Dispositivos Básicos del Aprendizaje (DBA) como las capacidades que permiten adquirir, organizar y recordar información, incluyendo la atención, memoria, motivación y comunicación. Explica que la atención puede ser espontánea o voluntaria, y que la memoria incluye las fases de aprendizaje, almacenamiento y recuerdo. Finalmente, señala que la motivación impulsa las actividades y está relacionada con la atención y memoria.
M E C H A N I C S O F F L U I D S J N T U M O D E L P A P E R{Wwwguest3f9c6b
The document contains information about an examination for Mechanics of Fluids, including:
- The exam code, date, subject, and maximum marks
- Instructions to answer any 5 of 8 questions, with all questions carrying equal marks
- The 8 questions cover various topics in fluid mechanics, such as Pascal's law, streamlines, pressure differences, drag forces, boundary layers, pipe flow, and venturimeters.
The questions involve derivations, calculations, and explanations related to fluid properties, flow behaviors, and applications of concepts like continuity, energy, momentum, viscosity, and pressure. Diagrams may be required to fully answer some of the questions.
05210202 F L U I D M E C H A N I C S A N D H Y D R A U L I C M A C H I...guestd436758
This document contains a fluid mechanics and hydraulic machinery exam from November 2008 with 8 multiple choice questions. Each question has multiple parts related to fluid mechanics concepts like viscosity, continuity equations, pipe flow analysis, hydraulic turbines, pumps, and hydroelectric power plants. The questions require calculations of forces, work, head loss, discharge, power output, and specfic speed for different hydraulic applications and machines.
05210202 Fluid Mechanics And Hydraulic Machineryguestac67362
This document contains 8 questions related to fluid mechanics and hydraulic machinery. It provides details of an exam, including the code, set number, subject, time allotted, and maximum marks. The questions cover various topics like viscosity, fluid flow, hydraulic turbines, pumps and other hydraulic machines. They involve deriving equations, solving numerical problems, and explaining concepts related to fluid properties, fluid dynamics, hydraulic components and systems.
This document contains questions from a Chemical Engineering exam on heat transfer. It covers various heat transfer topics including the three modes of heat transfer, thermal conductivity, conduction, convection, radiation, heat exchangers, and evaporators. The questions require calculations of heat transfer rates, temperatures, insulation thicknesses, heat exchanger areas, and overall heat transfer coefficients. They also ask students to derive equations, explain concepts, and discuss heat transfer processes and equipment.
This document contains 8 thermodynamics practice problems and their solutions. It provides details on processes like polytropic expansion, steam turbine cycles, gas mixtures, calorimetry, refrigeration cycles, internal energy, and more. The problems cover concepts in closed, open and isolated systems, the first and second laws of thermodynamics, and applying thermodynamic equations to calculate work, heat and efficiency.
This document contains details regarding an examination for a heat and mass transfer course, including:
1) The exam has 3 parts consisting of short answer, long answer, and case study questions worth 20, 65, and 15 marks respectively.
2) Sample questions assess topics like fin analysis, boundary layers, heat exchanger design, phase change processes, and radiation heat transfer.
3) One long answer question involves calculating temperatures in a multi-layer wall and determining the heat loss, while another evaluates melting of an iceberg towed through water.
The document contains the following:
1) A heat and mass transfer exam with 8 questions across 2 parts (A and B). Questions cover topics like deriving the 3D heat conduction equation, calculating heat transfer coefficients, temperature distributions, and more.
2) Part A questions derive the 3D heat conduction equation, calculate heat loss from a insulated pipe, and determine the temperature distribution in a plate heater system.
3) Part B questions calculate heat transfer over a flat plate, from a sphere, in a cross-flow heat exchanger, for condensation on a tube, and boiling in a pan. Questions also cover the logarithmic mean temperature difference and radiation heat transfer between plates.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
We would send hard copy of Journal by speed post to the address of correspondence author after online publication of paper.
We will dispatched hard copy to the author within 7 days of date of publication
This document contains 8 questions related to mechanics of fluids for an aeronautical engineering exam. The questions cover topics like Darcy's formula for head loss in pipes, Bernoulli's equation, boundary layers, stagnation properties, viscosity, venturimeters, and more. Students are asked to solve problems and derive equations related to fluid flow concepts.
Class 11 important questions for physics Thermal ExpansionInfomatica Academy
Here you can get Class 11 Important Questions for Physics based on NCERT Textbook for Class XI. Physics Class 11 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Thermal Expansion for Class 11 Physics subject.
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This document contains 15 questions related to heat and mass transfer for a mechanical engineering exam. The questions cover a range of topics including Fourier's law of heat conduction, boundary layer thickness calculations, heat exchanger classification, radiation heat transfer, conduction through hollow cylinders, transient heat transfer, forced convection over a flat plate, free convection, boiling heat transfer, shell and tube heat exchangers, cylindrical furnace radiation calculations, mass diffusion, and definitions of terms like the mass transfer coefficient. The document provides context for 15 multi-part problems students were required to answer for the exam.
1. The document contains 8 questions from 2 parts (Part A and Part B) on the topic of fluid mechanics for a 4th semester engineering examination.
2. Question 1a defines key fluid mechanics terms like specific weight, dynamic viscosity, kinematic viscosity, surface tension, and capillarity. Question 1b calculates the pressure difference between two points in a horizontal pipe using differential manometer readings.
3. Question 2a states and proves Pascal's law. Question 2b derives a relationship between the length and diameter of a wooden cylinder that must float in water based on its specific gravity.
This document discusses a study on forced convection heat transfer of nanofluids in turbulent flow through an automobile radiator tube. It presents numerical simulations using a k-epsilon turbulence model to analyze heat transfer characteristics like heat transfer coefficient, heat flux, and Nusselt number for alumina and titanium dioxide nanofluids suspended in water. The results show that increasing nanoparticle concentration improves heat transfer but heat transfer enhancement decreases with increasing Reynolds number. Nanofluids have potential advantages for automotive cooling applications by improving radiator and engine performance.
M E C H A N I C A L E N G I N E E R I N G J N T U M O D E L P A P E R{Wwwguest3f9c6b
The document is a practice exam for a Mechanical Engineering course. It contains 8 questions across 4 sets covering topics in thermodynamics, heat engines, compressors, and mechanical drives. The questions involve calculations related to processes, cycles, efficiencies, and power transmission. They require applying thermodynamic laws, cycles, and equations as well as mechanical drive concepts like pulleys, belts, gears and bearings.
The document contains information about a test series conducted by KAME Classroom and Online Test Series. It provides the date and time of the GATE 2017 Mechanical Engineering exam, and requests candidates to share their expected GATE scores. It also contains sample questions and answers from the GATE 2017 Mechanical Engineering exam.
The document contains information about a test series conducted by KAME Classroom and Online Test Series. It provides the date and time of the GATE 2017 Mechanical Engineering exam, and requests candidates to share their expected GATE scores. It also contains sample questions and answers from the GATE 2017 Mechanical Engineering exam.
M E C H A N I C S O F S O L I D S J N T U M O D E L P A P E R{Wwwguest3f9c6b
This document contains 8 sets of questions for a Mechanics of Solids exam. The questions cover topics like stresses and strains in rods, beams, and shells; shear force and bending moment diagrams; deflection of beams; principal stresses and Mohr's circle of stresses; columns and springs. Set 1 contains 8 questions, Set 2 contains 8 questions, and so on, with each set containing questions of equal marks that students can choose to answer.
Mass Transfer Operations I Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains questions from a Mass Transfer Operations exam. It includes 8 questions related to various mass transfer topics like classification of mass transfer operations, diffusion, distillation design, and mass transfer correlations. The questions involve calculations related to diffusion rates, mass transfer coefficients, distillation column design parameters, and phase equilibrium data.
Linear Ic Applications Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
The document contains 8 questions related to linear integrated circuits applications. The questions cover topics like differential amplifiers, operational amplifiers, active filters, oscillators, DACs, ADCs, timers and other linear IC applications. Some questions ask to explain concepts, derive expressions, design circuits meeting given specifications and compare different circuit configurations or components. The questions could be answered by discussing the relevant concepts, deriving necessary equations, sketching required circuits and providing explanations with diagrams.
English Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains an exam paper for an English exam with 8 questions. It provides context that the exam is for various engineering disciplines. The questions cover a range of topics including:
- Describing one's role during a natural calamity
- Discussing lessons from historical wars for India
- Key events and people in India's space program history
- Poetry analysis and writing
- Adjective formation with suffixes
- Short answer questions about Kalam's life and work in India's space program
Engineering Chemistry Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains four sets of questions for an Engineering Chemistry exam. Each set contains 8 questions related to topics in engineering chemistry. The questions cover topics like water chemistry, corrosion, fuels, lubricants, polymers, coatings, and refractories. Students are instructed to answer any 5 of the 8 questions in each set, which vary in length from short answer to longer explanations and calculations.
Engineering Chemistry 1 Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document appears to contain an exam for the subject of Engineering Chemistry. It includes 8 questions related to various topics in engineering chemistry. Students are instructed to answer any 5 of the 8 questions. Each question is worth equal marks, and the exam has a maximum total of 80 marks. The questions cover topics such as water treatment, corrosion, fuels, polymers, lubrication, and refractories.
Emwavesandtransmission Lines Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains an exam for a course on electromagnetic waves and transmission lines. It includes 8 questions covering various topics:
1. Coulomb's law, electric field calculations for point charges.
2. Ampere's circuital law, magnetic field calculations for conducting rods and coils.
3. Plane wave propagation in dielectric media, displacement current density.
4. Brewster's angle and refraction/reflection at dielectric interfaces.
5. Poynting vector, power calculations for waves incident on dielectric boundaries.
6. Parallel plate waveguide properties such as cutoff frequency.
7. Transmission line characteristics impedance and reflection coefficients.
8. Equivalent circuits for transmission lines of various
Embedded Systems Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains eight questions related to embedded systems for an exam. It covers topics like NRE and unit costs for different IC technologies, designing a 2-bit comparator, advantages of single-purpose vs general-purpose processors, need for more functional units in digital signal processors, hierarchical/concurrent state machine models, synchronization among concurrent processes using condition variables, and designing a logic circuit to minimize gates.
Electronic Devices And Circuits Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains an examination paper for an electronics course. It has 8 questions covering various topics in electronic devices and circuits. The questions test knowledge of topics like diode characteristics, rectifiers, transistors, amplifiers, feedback systems and oscillators. Students have to answer any 5 out of the 8 questions in the paper.
Electromagneticwavesandtransmissionlines Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document appears to be a study guide or exam for a course on electromagnetic waves and transmission lines. It contains 8 potential exam questions covering various topics in electromagnetism including Gauss's law, Maxwell's equations, electromagnetic wave propagation, transmission lines, and impedance. The questions involve both conceptual explanations and mathematical derivations and calculations. Overall, the document provides a set of comprehensive practice problems addressing key concepts in the study of electromagnetics.
Electrical Technology Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
The document contains information about an electrical technology exam, including:
- The exam code and details such as date, duration, and maximum marks.
- It lists 8 questions related to topics in electrical technology, such as DC machines, transformers, induction motors, and electrical instruments.
- For each question, it provides sub-questions to be answered, and the number of marks allocated to each question.
- It provides 4 different sets of questions, with the same format, for the exam.
Electrical Measurements Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains 8 questions related to electrical measurements. Question 1 asks about potential divider arrangements for multi-range voltmeters and converting a meter movement into a multi-range voltmeter. Question 2 asks about differences between current and potential transformers, sources of errors in current transformers, and the equivalent circuit of a current transformer. Question 3 asks about types of errors and compensation methods in dynamometer-type wattmeters and differences between LPF and UPF wattmeters.
Electrical Machines Iii Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document appears to be an exam for an Electrical Machines course, as it contains 8 multi-part questions related to various electrical machines. The questions cover topics like alternator construction and operation, synchronous generator regulation methods, synchronization of alternators, synchronous motor operation, and single-phase induction motors. Students are instructed to answer any 5 of the 8 questions in the exam, which will last 3 hours and is worth a total of 80 marks.
Electrical Machines Ii Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document appears to contain exam questions and answers for a course on Electrical Machines II. It includes 8 questions related to topics like transformers, induction motors, and their operation. Some sample sub-questions ask students to derive transformer equations, calculate transformer parameters from test data, explain induction motor operation modes, and perform calculations related to induction motor speed control. The document provides detailed questions and answers across multiple pages for students to test their understanding of key electrical machines concepts.
Electrical Circuits Analysis Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains information about an electrical circuits analysis exam, including 8 questions on various circuit analysis topics. The questions cover concepts like equivalent circuits, network theorems, transient response, 3-phase circuits, and parameter conversions. Students have 3 hours to answer any 5 of the 8 questions, which all carry equal marks. Sample questions include analyzing networks, calculating inductance and power, deriving expressions, and using techniques like mesh analysis and Norton's theorem.
Digital Ic Applications Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains eight questions related to digital integrated circuits and applications. The questions cover topics such as CMOS and TTL gates, VHDL programming, counters, decoders, arithmetic circuits, memories and programmable logic devices. Students are instructed to answer any five of the eight questions, which can include circuit design problems, writing VHDL code, explaining concepts, and performing calculations. The exam is worth a total of 80 marks and is aimed at testing knowledge of digital logic design and implementation using integrated circuits.
Digital Control Systems Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains questions from a digital control systems exam. It covers topics like digital to analog conversion, z-transforms, stability analysis of sampled data systems, time domain analysis of discrete time systems using block diagrams, root locus sketches, controller design, state space models, and Lyapunov stability analysis. The exam has 8 questions, with some having multiple parts. Students are instructed to answer any 5 questions out of the 8 given.
Designofmachinemembers I Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
The document is a study guide containing 8 practice problems for a Design of Machine Members exam. The problems cover various topics in machine design including stresses induced in composite bars due to temperature changes, factors affecting endurance limits, advantages/disadvantages of welded vs riveted joints, bolt sizing, cotter and knuckle joint design, and hollow vs solid shaft design. Students are asked to calculate stresses, sizes of bolts, rivets, joints, and shafts based on given loading and material properties.
Digital Communications Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document contains exam questions for the subject Digital Communications. It has 8 questions divided into 3 sets. The questions cover various topics in digital communications including PCM, delta modulation, digital modulation techniques, bandwidth calculations, error probability analysis, channel capacity, linear block codes and conventional codes. Students are required to answer any 5 questions out of the 8 questions.
Databasemanagementsystems Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
This document appears to be an exam for a Database Management Systems course, as it contains 8 questions related to various DBMS topics. The exam instructs students to answer any 5 of the 8 questions. Each question is worth equal marks, with the total exam being out of 80 marks. The questions cover topics such as data modeling, relational algebra, indexing, concurrency control, recovery techniques, and more. Students are asked to explain concepts, provide examples, and solve problems related to database design, query processing, and transaction management.
Decision Support Systems Jntu Model Paper{Www.Studentyogi.Com}guest3f9c6b
The document contains questions from a Decision Support Systems exam for a B.Tech program. It covers various topics related to DSS including:
1) Human and Kepner-Tregoe decision making methods
2) Types of DSS software and client/server computing
3) Components of corporate models and electronic meeting styles
4) Expert systems, knowledge bases, and queuing disciplines
5) Data warehouses, extraction/loading stages, and multi-dimensional databases
The questions require explanations of concepts, comparison of approaches, and short answers testing understanding of key DSS topics.
Introduction of Cybersecurity with OSS at Code Europe 2024Hiroshi SHIBATA
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.
Skybuffer SAM4U tool for SAP license adoptionTatiana Kojar
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
Generating privacy-protected synthetic data using Secludy and MilvusZilliz
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.
AppSec PNW: Android and iOS Application Security with MobSFAjin Abraham
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
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This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
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Topics covered:
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Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
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Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
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This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
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Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
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Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
Choosing The Best AWS Service For Your Website + API.pptx
F L U I D M E C H A N I C S A N D H E A T T R A N S F E R J N T U M O D E L P A P E R{Www
1. www.studentyogi.com www.studentyogi.com
Code No: R05221402
Set No. 1
II B.Tech II Semester Regular Examinations, Apr/May 2008
FLUID MECHANICS AND HEAT TRANSFER
( Common to Mechatronics and Production Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) De ne bulk mo dulus of uids. What is its signi cance? [8]
(b) A cylindrical shaft of 90 mm diameter rotates about a vertical axis inside
a xed cylindrical tube of length 50 cm and 95 mm internal diameter. If
the space between the tube and the shaft is lled by a lubricant of dynamic
viscosity 2 poise, determine the power required to overcome viscous resistance
when the shaft is rotated at a speed of 240 rpm. [8]
2. (a) What do you understand by uniform ow and non uniform ow ? What are
the practical examples? [8]
(b) The stream function of a ow is given by = x3 -3xy2 . Find the velo city at
a point (3,2) and the velocity potential function. [8]
3. (a) State the momentum equation. How will you apply momentum equation for
determining the force exerted by a owing liquid on a pipe bend? [8]
(b) A 450 reducing bend is connected in a pipe line, the diameters at the inlet and
outlet of the bend being 40cm and 20 cm respectively. Find the force exerted
by water on the bend if the intensity of pressure at inlet of bend is 21.58 N
/cm2 . The rate of ow of water is 500 lit/sec. [8]
4. The population of a city is 8X105 and it is to be supplied with water from a reservoir
6.4 km away. Water is to be supplied at the rate of 0.14 3 per head per day and
half the supply is to be delivered in 8 hours. The full supply level of the reservoir is
R.L 180.00. and its lowest water level is R.L.105.00. The delivery end of the main
is at R.L 22.50 and the head required there is 12m. Find the diameter of the pipe.
Take f= 0.04. [16]
5. Prove that the heat loss per square metre of outside surface area of a hollow sphere
heated from within is equal to
= 2 ( 1 - 2)
( 2 - 1) D2
D1
where T1 and T2 are the temperatures and D1 and D2 are the diameters of the
inner and outer surfaces respectively. [16]
6. (a) Explain the di erence between laminar and turbulent ow.
(b) Derive an equation for the lm heat transfer coe cient in forced convection
using dimensional analysis. What are its limitations. [6+10]
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Code No: R05221402
Set No. 1
7. (a) When a body is said to be black? What is the range of wave lengths it absorbs?
(b) Compute the radiant energy loss from 1 cm diameter opening in a thin walled
furnace located in a large enclosure, if the temperature with in the furnace is
9000C and the surroundings are at 200C. [6+10]
8. Steam is condensed in a single pass condenser at a pressure of 0.5 bar. The con-
denser consists of 100 thin walled tubes of 2.5 cm nominal diameter and 2m length
.The cooling water enters and leaves at a temperature of 100C and 500C with a
mean velocity of 2 m/Sec. The condensing heat transfer coe cient is 5 KW/ 2-K
. Find
(a) Overall heat transfer coe cient for heat exchanger
(b) Condensation rate of steam
(c) Mean temperature of metal at the center of condenser length. [16]
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Code No: R05221402
Set No. 2
II B.Tech II Semester Regular Examinations, Apr/May 2008
FLUID MECHANICS AND HEAT TRANSFER
( Common to Mechatronics and Production Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) De ne viscosity. Derive the equation for the viscosity. [8]
(b) The space between two parallel plates kept 3mm apart is lled with an oil of
dynamic viscosity 0.2 N- Sec / m2 . What is the shear stress on the lower
xed plate if the upper one is moved with a velocity of 1.5 m /sec? [8]
2. (a) What is a ow net? What are its uses ? Give examples. [8]
(b) The ow eld is described by V = (-Y2 )i - (6x)j . What is the equation of
the stream line to pass through a point ( 12,15). [8]
3. (a) What is a ori ce meter. Derive an expression for the discharge through a
ori ce meter. [8]
(b) A vertical venturimeter has its inlet and throat diameters as 25 cm and 12.5
cm Respectively. A di erential mercury manometer connected to the inlet and
throat points gives a reading of 25cm. Find the rate of ow. Take Cd=0.98.
The liquid owing through the meter is water. [8]
4. Derive the equation for head loss in pipes due to friction. Explain the variation of
friction factor with Reynolds number. [16]
5. Prove that the heat loss per square metre of outside surface area of a hollow sphere
heated from within is equal to
= 2 ( 1 - 2)
( 2 - 1) D2
D1
where T1 and T2 are the temperatures and D1 and D2 are the diameters of the
inner and outer surfaces respectively. [16]
6. (a) Explain the di erence between natural and forced convection.
(b) State the Buckingham’s -theorem. Using dimensional analysis obtain an
expression for Nusselt number in terms of Reynolds and Prandtl numbers.
[4+12]
7. (a) Explain the term shape factor?
(b) A spherical liquid oxygen tank 0.3 m in diameter is enclosed concentrically in
a spherical container of 0.4m diameter and the space in between is evacuated.
The tank surface is at -1830C and has an emissivity 0.2. The container surface
is at 150C and has an emissivity 0.25. Determine the net radiant heat transfer
rate.
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Code No: R05221402
Set No. 2
8. (a) Derive an expression for e ectiveness of a counter ow heat exchanger using
NTU method .
(b) Water ( p = 4200 J/kg K ) enters a counter ow double pipe heat exchanger
at 390C at the rate of 273.6 kg/hr .It is heated by oil ( p = 1880 J/kg-K )
owing at the rate of 547.2 kg/hr from an inlet temperature of 1180C nd the
total heat transfer rate per 2.Take U = 342 W/ 2-K.v [8+8]
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Code No: R05221402
Set No. 3
II B.Tech II Semester Regular Examinations, Apr/May 2008
FLUID MECHANICS AND HEAT TRANSFER
( Common to Mechatronics and Production Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) What is kinematic viscosity ? What are its units? [6]
(b) Two coaxial cylinders 10 cm and 9.75 cm in diameter and 2.5 cm high have
both their ends open and have a viscous liquid lled in between. A torque of
1.2 N- m is produced on the inner cylinder when the outer one rotates at 90
rpm. Determine the coe cient of viscosity of the liquid. [10]
2. (a) What is a ow net? What are its uses ? Give examples. [8]
(b) The ow eld is described by V = (-Y2 )i - (6x)j . What is the equation of
the stream line to pass through a point ( 12,15). [8]
3. (a) State and prove Euler’ equation of motion. Obtain Bernoulli’s equation from
Euler’s equation [8]
(b) At a certain section A of a pipe line carrying water, the diameter is 1m, the
pressure is 98.1kN/m2 and the velocity is 3m/sec. At another section B which
is 2 m higher than A, the diameter is 0.7m and the pressure is 59.2 k N / m2.
What is the direction of ow? [8]
4. Derive the equation for head loss in pipes due to friction. Explain the variation of
friction factor with Reynolds number. [16]
5. A standard 5 cm steel pipe carrying steam is insulated with 7.5 cm layer of glass
wo ol. The outer surface temperature of the pipe is 2000C and that of the covering is
650C. Essimate the heat loss from pipe and assume the value of thermal conductivity
of steel. [16]
6. (a) 0.05 kg/s of CO2 gas at 400K owing in a 20 mm diameter pipe. For viscosity
take = 1.56×10- 6 T 3 / 2
(233+T ) Calculate its Reynolds number and state whether
ow is laminar or turbulent.
(b) Draw a labeled schematic diagram showing the features of a velocity boundary
layer for forced convection over a at plate. Also show in the diagram the
essential di erences between the laminar and turbulent parts of the boundary
layer. [8+8]
7. (a) When a body is said to be black? What is the range of wave lengths it absorbs?
(b) Compute the radiant energy loss from 1 cm diameter opening in a thin walled
furnace located in a large enclosure, if the temperature with in the furnace is
9000C and the surroundings are at 200C. [6+10]
6. www.studentyogi.com www.studentyogi.com
Code No: R05221402
Set No. 3
8. (a) Derive an expression for logarithmic mean temperature di erence for the case
of counter ow exchanger .
(b) A liquid chemical ows through a thin walled copper tube of 12 mm diameter
at the rate of 0.5 kg/sec water ows in opposite direction at the rate 0.37
kg/sec through the annular space formed by this tube and a tube diameter
of 20 mm . The liquid chemical enters and leaves at 1000C and 600C ,while
water enters at 100C . Find the length of tube required. Also nd the length
of tube required if the water ows in the same direction as liquid chemical.
The properties of water and liquid chemical are [8+8]
PROPERTIES 270C LIQUID CHEMICALAT 800C WATERAT
, Kg/ 3 1078 995
, Kg/m- 2 3200*10-6 853 *10-6
Cp, J/Kg-K 2050 4180
K,W/mK 0.261 0.614
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Code No: R05221402
Set No. 4
II B.Tech II Semester Regular Examinations, Apr/May 2008
FLUID MECHANICS AND HEAT TRANSFER
( Common to Mechatronics and Production Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Hydrostatic pressure of a uid always acts normal to the surface with which
it is in contact. Why? [8]
(b) If the pressure at a point below the sea is 200 KN /m2, what is the pressure
30m below this point? [8]
2. (a) When do you say the ow is rotational or irrotational ? Give suitable exam-
ples? [8]
(b) A stream function is given by = x3 - y3. Show that the ow can not be a
potential ow. [8]
3. (a) Explain momentum thickness, energy thickness and displacement thickness.
[8]
(b) Find the frictional drag on one side of the plate 20cm wide and 50cm long
placed longitudinally in a steam of crude oil (speci c gravity 0.925, kinematic
viscosity 0.9 stoke) owing with undisturbed velocity of 5 m/sec. Also nd
the thickness of boundary layer and the shear stress of the trailing edge of the
plate. [8]
4. A pipe 50 mm dia is 6 m long and the velocity of ow of water in the pipe is 2.4
m/s. what loss of head and the corresponding power would be saved if the central
2m length of pipe was replaced by 75mm dia pipe, the change of section being
sudden? Take f= 0.04 for the pipes of both diameter. Consider the minor losses
also. [16]
5. A standard 5 cm steel pipe carrying steam is insulated with 7.5 cm layer of glass
wo ol. The outer surface temperature of the pipe is 2000C and that of the covering is
650C. Essimate the heat loss from pipe and assume the value of thermal conductivity
of steel. [16]
6. (a) Derive the two dimensional energy equation for the thermal boundary layer
over a at plate.
(b) Calculate the rate of free convection heat loss from 25 cm diameter sphere
maintained at 900C and exposed to atmospheric air at 100C. [8+8]
7. (a) State and explain Lamberts Cosine law.
(b) A person standing 10m from a point heat source is subjected to a radiation
intensity of 200 × 106 J/hr m2. How far should he stand from the heat source
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Code No: R05221402
Set No. 4
8. A heat exchanger (17.2 2) is used to cool oil at 2000C by water available at
200C . The mass ow and sp.heat of oil are 10000 kg/hr and 1. 9 kJ/kg-K and
corresponding values for water are 300W/ 2-K. Find the outlet temperature of oil
and water for parallel ow and counter ow arrangements using LMTD metho d
and (2) NTU method. [16]