This document contains information about an introductory fluid mechanics course, including:
- The lecturer's name and contact information, as well as consultation hours for the lecturer and another professor.
- An outline of topics to be covered, including fluid motion, thermal physics, electricity, and revision.
- A brief overview of fluid properties like density, pressure, compressibility of gases, liquids and solids.
- Explanations of concepts like hydrostatic equilibrium, Pascal's law, Archimedes' principle, buoyancy, and the continuity equation.
- Examples of calculating pressure, buoyant force, and applying conservation of mass.
This document discusses key concepts in fluid mechanics, including:
1) Fluid statics, hydrostatic equilibrium, Archimedes' principle, and buoyancy.
2) Fluid dynamics principles like conservation of mass expressed by the continuity equation, and conservation of energy expressed by Bernoulli's equation.
3) Applications of fluid dynamics concepts like calculating flow rates and velocities using the continuity equation, and calculating velocities using Bernoulli's equation.
- The document discusses key concepts in fluid mechanics including density, pressure, buoyancy, and fluid flow.
- Density is the ratio of mass to volume and plays a role in determining if objects float. Higher density fluids sit below lower density fluids.
- Pressure increases with depth in a fluid and is transmitted equally in all directions according to Pascal's laws.
- Archimedes' principle states that the buoyant force on an object equals the weight of fluid displaced.
- Bernoulli's principle relates fluid pressure and velocity such that higher flow speeds means lower pressure.
introduction to fluid mechanics physics 17gxrufzxu
1. A fluid is defined as a substance that can flow and conform to the shape of its container. Density and pressure are important physical quantities used to describe fluids. Density is the ratio of mass to volume, and pressure is the ratio of force to area.
2. Hydrostatic pressure in static fluids increases linearly with depth due to gravity. The pressure at a point in a fluid depends only on the depth and density of the fluid, not the shape of the container.
3. Pascal's principle states that a pressure change in an enclosed incompressible fluid is transmitted undiminished throughout the fluid and to the walls of its container. This allows hydraulic systems like levers to multiply force over distance.
This document summarizes the key topics covered in a physics class, including fluids, pressure, Pascal's law, gauge pressure, buoyancy, Archimedes' principle, density, and examples calculating buoyant force. It reviews key definitions like pressure, atmospheric pressure, and gauge pressure. It also provides examples calculating tension in strings for submerged objects. The document announces that the next class will be a review for the upcoming final exam on fluids, pressure, density and other topics from chapters 1-15.
This document discusses fluids and fluid mechanics. It defines a fluid as anything that flows, including liquids and gases. It discusses the properties of fluids like density, pressure, viscosity, compressibility, and how these properties depend on factors like temperature. It introduces concepts like Pascal's principle, Archimedes' principle, Bernoulli's principle, and equations like the equation of continuity that relate key variables in fluid flow situations. Examples are provided to illustrate how to apply these principles and equations to calculate things like fluid pressure, velocity, and buoyant forces.
This document discusses various properties and concepts related to fluid mechanics. It begins by defining density, specific weight, specific volume, and specific gravity as properties of fluids. It then discusses viscosity, noting that it represents a fluid's resistance to flow and is defined as the ratio of shear stress to shear rate. Viscosity varies with temperature for liquids and gases. The document also covers surface tension, capillarity, vapor pressure, cavitation, fluid statics, and Pascal's law.
1) Fluid mechanics covers fluids at rest and in motion. Key concepts include density, pressure, Pascal's law, Archimedes' principle, continuity equation, and Bernoulli's equation.
2) Pascal's law states that pressure applied to a fluid is transmitted undiminished throughout. Archimedes' principle relates buoyant force to fluid displacement.
3) The continuity equation equates mass flow in and out of a fluid system. Bernoulli's equation relates pressure, flow velocity, and elevation for steady, incompressible flow.
This document provides an overview of key concepts covered in a physics class, including fluids, pressure, Pascal's law, gauge pressure, buoyancy, and Archimedes' principle. It discusses how pressure increases with depth in fluids and defines density. Examples are provided to illustrate calculating buoyant force and tension in submerged objects. The document also explains that melting an iceberg that is already floating will not change sea level due to Archimedes' principle of buoyancy.
This document discusses key concepts in fluid mechanics, including:
1) Fluid statics, hydrostatic equilibrium, Archimedes' principle, and buoyancy.
2) Fluid dynamics principles like conservation of mass expressed by the continuity equation, and conservation of energy expressed by Bernoulli's equation.
3) Applications of fluid dynamics concepts like calculating flow rates and velocities using the continuity equation, and calculating velocities using Bernoulli's equation.
- The document discusses key concepts in fluid mechanics including density, pressure, buoyancy, and fluid flow.
- Density is the ratio of mass to volume and plays a role in determining if objects float. Higher density fluids sit below lower density fluids.
- Pressure increases with depth in a fluid and is transmitted equally in all directions according to Pascal's laws.
- Archimedes' principle states that the buoyant force on an object equals the weight of fluid displaced.
- Bernoulli's principle relates fluid pressure and velocity such that higher flow speeds means lower pressure.
introduction to fluid mechanics physics 17gxrufzxu
1. A fluid is defined as a substance that can flow and conform to the shape of its container. Density and pressure are important physical quantities used to describe fluids. Density is the ratio of mass to volume, and pressure is the ratio of force to area.
2. Hydrostatic pressure in static fluids increases linearly with depth due to gravity. The pressure at a point in a fluid depends only on the depth and density of the fluid, not the shape of the container.
3. Pascal's principle states that a pressure change in an enclosed incompressible fluid is transmitted undiminished throughout the fluid and to the walls of its container. This allows hydraulic systems like levers to multiply force over distance.
This document summarizes the key topics covered in a physics class, including fluids, pressure, Pascal's law, gauge pressure, buoyancy, Archimedes' principle, density, and examples calculating buoyant force. It reviews key definitions like pressure, atmospheric pressure, and gauge pressure. It also provides examples calculating tension in strings for submerged objects. The document announces that the next class will be a review for the upcoming final exam on fluids, pressure, density and other topics from chapters 1-15.
This document discusses fluids and fluid mechanics. It defines a fluid as anything that flows, including liquids and gases. It discusses the properties of fluids like density, pressure, viscosity, compressibility, and how these properties depend on factors like temperature. It introduces concepts like Pascal's principle, Archimedes' principle, Bernoulli's principle, and equations like the equation of continuity that relate key variables in fluid flow situations. Examples are provided to illustrate how to apply these principles and equations to calculate things like fluid pressure, velocity, and buoyant forces.
This document discusses various properties and concepts related to fluid mechanics. It begins by defining density, specific weight, specific volume, and specific gravity as properties of fluids. It then discusses viscosity, noting that it represents a fluid's resistance to flow and is defined as the ratio of shear stress to shear rate. Viscosity varies with temperature for liquids and gases. The document also covers surface tension, capillarity, vapor pressure, cavitation, fluid statics, and Pascal's law.
1) Fluid mechanics covers fluids at rest and in motion. Key concepts include density, pressure, Pascal's law, Archimedes' principle, continuity equation, and Bernoulli's equation.
2) Pascal's law states that pressure applied to a fluid is transmitted undiminished throughout. Archimedes' principle relates buoyant force to fluid displacement.
3) The continuity equation equates mass flow in and out of a fluid system. Bernoulli's equation relates pressure, flow velocity, and elevation for steady, incompressible flow.
This document provides an overview of key concepts covered in a physics class, including fluids, pressure, Pascal's law, gauge pressure, buoyancy, and Archimedes' principle. It discusses how pressure increases with depth in fluids and defines density. Examples are provided to illustrate calculating buoyant force and tension in submerged objects. The document also explains that melting an iceberg that is already floating will not change sea level due to Archimedes' principle of buoyancy.
The document defines key concepts in fluid mechanics including:
1) Fluids are substances that can flow and take the shape of their container, with liquids having a definite volume and gases not.
2) Density is the concentration of matter in an object. Objects with lower density than the surrounding fluid will float.
3) Buoyant forces exerted by fluids produce an upward force on objects submerged in the fluid equal to the weight of fluid displaced.
4) Archimedes' principle states the upward buoyant force equals the weight of fluid displaced by the submerged object.
The document discusses fluids mechanics and provides information about various fluid properties and concepts. It defines fluid, states of matter, density, viscosity, surface tension, capillarity, and vapor pressure. It also discusses fluid pressure and different types of pressure measurements including manometers, mechanical gauges, and electronic gauges. Specific devices like piezometer, U-tube manometer, differential manometer, and bourdon tube pressure gauge are explained. Course outcomes related to understanding and applying concepts of fluid statics, kinematics, dynamics, and pressure measurements are also listed.
This document discusses forces inside fluids and key concepts like density, pressure, hydrostatics, and Archimedes' principle. It defines density as mass per unit volume and pressure as force per unit area. It explains that hydrostatic pressure depends on depth, fluid density, and gravity. Connecting vases and Pascal's principle are consequences of fluids transmitting pressure undiminished. Archimedes' principle states that the buoyant force on an object equals the weight of fluid displaced. Atmospheric pressure can be measured using experiments with liquid columns.
1) The document discusses fluid mechanics concepts covered on the AP Physics B exam including hydrostatic pressure, buoyancy, Bernoulli's equation, and the equation of continuity.
2) It provides examples of problems involving pressure, buoyancy, density, and fluid flow. Problems calculate pressure at different depths, tensions in cables, and the minimum mass needed for an object to sink.
3) Key fluid mechanics principles explained include how pressure increases with depth, Archimedes' principle of buoyancy, and Pascal's principle relating pressures within a fluid. Laminar and turbulent fluid flow are also briefly introduced.
The document discusses several concepts related to fluid mechanics, including:
1. Pressure exerted by fluids on surfaces according to the equation P=F/A. Hydrostatic pressure and pressure variations in vertical planes are also covered.
2. Pascal's principle which states that pressure changes are transmitted undiminished throughout a fluid. This allows applications like hydraulic presses.
This document provides information about fluid mechanics, including definitions, concepts, and examples. It begins with definitions of a fluid and common fluids like liquids and gases. It then describes fluid mechanics as the study of fluids at rest or in motion. Key concepts discussed include density, pressure, Pascal's law, buoyancy, and Bernoulli's equation. Examples are provided to demonstrate applications of these principles, such as calculating forces from submerged objects.
This document defines and explains several key concepts in fluid mechanics. It begins by defining a fluid and fluid mechanics. It then discusses the properties of fluids including them being a continuum, density, specific gravity, vapor pressure, cavitation, energy and specific heats, viscosity, and surface tension. It also discusses concepts like the Mach number that are important for analyzing high speed gas flows. In summary, the document provides an introduction to fluid mechanics covering definitions, properties, and concepts in the field.
1. The document provides information about fluid mechanics, including definitions of key terms like density, pressure, gauge pressure, absolute pressure, Pascal's principle, buoyancy, flow rate, Bernoulli's equation, and other fluid dynamics concepts.
2. Key definitions include: density is mass per unit volume, pressure is force per unit area, gauge pressure measures pressure differences while absolute pressure includes atmospheric pressure, Pascal's principle states pressure changes are transmitted equally in all directions through a confined fluid.
3. Bernoulli's equation states the total pressure and potential/kinetic energy in a fluid remains constant, so changes in one form result in equal changes to others.
This document provides a lesson on fluid mechanics. It introduces key concepts in fluid statics including density, pressure, buoyancy, and atmospheric pressure. Key concepts in fluid dynamics are also introduced, including the continuity equation and Bernoulli's equation. Several sample problems are provided and worked through to demonstrate applications of these fluid mechanics principles. The document concludes with additional practice problems for students.
This document defines key concepts in fluid mechanics including:
- Density, specific gravity, pressure, buoyancy, fluid flow, Bernoulli's principle.
- Formulas are provided for calculating density, pressure, buoyant force, apparent weight.
- Examples show calculations for problems involving the density, pressure, and buoyant force exerted by liquids on immersed objects.
1. The document provides information about fluid mechanics and machinery. It defines fluids and discusses density, pressure, gauge and absolute pressure, Pascal's principle, buoyancy, fluid flow rates, Bernoulli's equation, and other key concepts.
2. Key equations are presented for pressure, density, flow rate, continuity, Bernoulli's equation, and buoyancy. Examples are given to show how to use the equations to calculate pressure, velocity, flow rate, and tension in cables.
3. The document is intended to present fundamental concepts and equations for fluid mechanics to understand properties of fluids, pressure, flow, and buoyancy.
This document provides an introduction to fluid mechanics and fluid properties. It discusses:
1) Fluid mechanics is the study of fluids at rest and in motion, and is divided into fluid statics and fluid dynamics (kinematics and kinetics).
2) Key fluid properties include density, specific weight, specific volume, viscosity, compressibility, and surface tension. Equations for calculating these properties are presented.
3) Types of fluids include ideal, real, Newtonian, non-Newtonian, and plastic fluids. Types of flow include steady, unsteady, uniform, non-uniform, compressible, and incompressible flow.
Forces in fluids are explained through concepts like pressure, which increases with depth underwater or elevation above sea level. Devices like hydraulic systems use confined fluids to multiply forces by changing piston sizes based on Pascal's principle. Archimedes' principle states that the buoyant force on an object submerged in a fluid equals the weight of the fluid displaced, determining whether it sinks or floats based on relative densities.
This document discusses fluid mechanics and hydraulics concepts including:
1. Definitions of density, specific gravity, atmospheric pressure, absolute and gauge pressure.
2. Descriptions of viscosity, laminar flow, turbulent flow, continuity equation, and steady vs unsteady flow.
3. Explanations of surface tension, capillarity, hydrostatic pressure, buoyancy, and center of pressure.
4. Discussions of manometers, energy equations, forces on submerged surfaces, and fluid static forces.
This document covers several key topics in fluid mechanics including Pascal's principle, Bernoulli's equation, Archimedes' principle, and their applications. It includes definitions of key terms like viscosity, diffusion, and osmosis. It also works through multiple examples applying concepts like pressure, buoyancy, and continuity to problems involving things like fluid flow through pipes and the height of towers or pools.
This document discusses fluid mechanics concepts including fluid statics, fluid dynamics, and the equation of continuity. Key points covered include:
- Fluid statics concepts such as density, pressure, buoyancy force.
- Fluid dynamics concepts such as laminar vs turbulent flow and the equation of continuity.
- Ideal fluid flow assumptions including steady, nonviscous, incompressible, and irrotational flow.
- Examples calculating pressure, buoyancy force, fluid flow rates, and more.
This document discusses key concepts in fluid mechanics including:
- Density is the ratio of mass to volume and is measured in kg/m3.
- Pressure is force per unit area and is measured in units of N/m2 or Pa.
- Pascal's principle states that pressure applied to a confined fluid is transmitted undiminished throughout the fluid.
- Bernoulli's principle states that as the velocity of a fluid increases, its pressure decreases.
Hydraulic consists of the application of fluid mechanics to water flowing in an isolated environment (pipe, pump) or in an open channel (river, lake, ocean). Civil engineers are primarily concerned with open channel flow, which is governed by the interdependent interaction between the water and the channel. Applications include the design of hydraulic structures, such as sewage conduits, dams and breakwaters, the management of waterways, such as erosion protection and flood protection, and environmental management, such as prediction of the mixing and transport of pollutants in surface water.
Blood finder application project report (1).pdfKamal Acharya
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.
The document defines key concepts in fluid mechanics including:
1) Fluids are substances that can flow and take the shape of their container, with liquids having a definite volume and gases not.
2) Density is the concentration of matter in an object. Objects with lower density than the surrounding fluid will float.
3) Buoyant forces exerted by fluids produce an upward force on objects submerged in the fluid equal to the weight of fluid displaced.
4) Archimedes' principle states the upward buoyant force equals the weight of fluid displaced by the submerged object.
The document discusses fluids mechanics and provides information about various fluid properties and concepts. It defines fluid, states of matter, density, viscosity, surface tension, capillarity, and vapor pressure. It also discusses fluid pressure and different types of pressure measurements including manometers, mechanical gauges, and electronic gauges. Specific devices like piezometer, U-tube manometer, differential manometer, and bourdon tube pressure gauge are explained. Course outcomes related to understanding and applying concepts of fluid statics, kinematics, dynamics, and pressure measurements are also listed.
This document discusses forces inside fluids and key concepts like density, pressure, hydrostatics, and Archimedes' principle. It defines density as mass per unit volume and pressure as force per unit area. It explains that hydrostatic pressure depends on depth, fluid density, and gravity. Connecting vases and Pascal's principle are consequences of fluids transmitting pressure undiminished. Archimedes' principle states that the buoyant force on an object equals the weight of fluid displaced. Atmospheric pressure can be measured using experiments with liquid columns.
1) The document discusses fluid mechanics concepts covered on the AP Physics B exam including hydrostatic pressure, buoyancy, Bernoulli's equation, and the equation of continuity.
2) It provides examples of problems involving pressure, buoyancy, density, and fluid flow. Problems calculate pressure at different depths, tensions in cables, and the minimum mass needed for an object to sink.
3) Key fluid mechanics principles explained include how pressure increases with depth, Archimedes' principle of buoyancy, and Pascal's principle relating pressures within a fluid. Laminar and turbulent fluid flow are also briefly introduced.
The document discusses several concepts related to fluid mechanics, including:
1. Pressure exerted by fluids on surfaces according to the equation P=F/A. Hydrostatic pressure and pressure variations in vertical planes are also covered.
2. Pascal's principle which states that pressure changes are transmitted undiminished throughout a fluid. This allows applications like hydraulic presses.
This document provides information about fluid mechanics, including definitions, concepts, and examples. It begins with definitions of a fluid and common fluids like liquids and gases. It then describes fluid mechanics as the study of fluids at rest or in motion. Key concepts discussed include density, pressure, Pascal's law, buoyancy, and Bernoulli's equation. Examples are provided to demonstrate applications of these principles, such as calculating forces from submerged objects.
This document defines and explains several key concepts in fluid mechanics. It begins by defining a fluid and fluid mechanics. It then discusses the properties of fluids including them being a continuum, density, specific gravity, vapor pressure, cavitation, energy and specific heats, viscosity, and surface tension. It also discusses concepts like the Mach number that are important for analyzing high speed gas flows. In summary, the document provides an introduction to fluid mechanics covering definitions, properties, and concepts in the field.
1. The document provides information about fluid mechanics, including definitions of key terms like density, pressure, gauge pressure, absolute pressure, Pascal's principle, buoyancy, flow rate, Bernoulli's equation, and other fluid dynamics concepts.
2. Key definitions include: density is mass per unit volume, pressure is force per unit area, gauge pressure measures pressure differences while absolute pressure includes atmospheric pressure, Pascal's principle states pressure changes are transmitted equally in all directions through a confined fluid.
3. Bernoulli's equation states the total pressure and potential/kinetic energy in a fluid remains constant, so changes in one form result in equal changes to others.
This document provides a lesson on fluid mechanics. It introduces key concepts in fluid statics including density, pressure, buoyancy, and atmospheric pressure. Key concepts in fluid dynamics are also introduced, including the continuity equation and Bernoulli's equation. Several sample problems are provided and worked through to demonstrate applications of these fluid mechanics principles. The document concludes with additional practice problems for students.
This document defines key concepts in fluid mechanics including:
- Density, specific gravity, pressure, buoyancy, fluid flow, Bernoulli's principle.
- Formulas are provided for calculating density, pressure, buoyant force, apparent weight.
- Examples show calculations for problems involving the density, pressure, and buoyant force exerted by liquids on immersed objects.
1. The document provides information about fluid mechanics and machinery. It defines fluids and discusses density, pressure, gauge and absolute pressure, Pascal's principle, buoyancy, fluid flow rates, Bernoulli's equation, and other key concepts.
2. Key equations are presented for pressure, density, flow rate, continuity, Bernoulli's equation, and buoyancy. Examples are given to show how to use the equations to calculate pressure, velocity, flow rate, and tension in cables.
3. The document is intended to present fundamental concepts and equations for fluid mechanics to understand properties of fluids, pressure, flow, and buoyancy.
This document provides an introduction to fluid mechanics and fluid properties. It discusses:
1) Fluid mechanics is the study of fluids at rest and in motion, and is divided into fluid statics and fluid dynamics (kinematics and kinetics).
2) Key fluid properties include density, specific weight, specific volume, viscosity, compressibility, and surface tension. Equations for calculating these properties are presented.
3) Types of fluids include ideal, real, Newtonian, non-Newtonian, and plastic fluids. Types of flow include steady, unsteady, uniform, non-uniform, compressible, and incompressible flow.
Forces in fluids are explained through concepts like pressure, which increases with depth underwater or elevation above sea level. Devices like hydraulic systems use confined fluids to multiply forces by changing piston sizes based on Pascal's principle. Archimedes' principle states that the buoyant force on an object submerged in a fluid equals the weight of the fluid displaced, determining whether it sinks or floats based on relative densities.
This document discusses fluid mechanics and hydraulics concepts including:
1. Definitions of density, specific gravity, atmospheric pressure, absolute and gauge pressure.
2. Descriptions of viscosity, laminar flow, turbulent flow, continuity equation, and steady vs unsteady flow.
3. Explanations of surface tension, capillarity, hydrostatic pressure, buoyancy, and center of pressure.
4. Discussions of manometers, energy equations, forces on submerged surfaces, and fluid static forces.
This document covers several key topics in fluid mechanics including Pascal's principle, Bernoulli's equation, Archimedes' principle, and their applications. It includes definitions of key terms like viscosity, diffusion, and osmosis. It also works through multiple examples applying concepts like pressure, buoyancy, and continuity to problems involving things like fluid flow through pipes and the height of towers or pools.
This document discusses fluid mechanics concepts including fluid statics, fluid dynamics, and the equation of continuity. Key points covered include:
- Fluid statics concepts such as density, pressure, buoyancy force.
- Fluid dynamics concepts such as laminar vs turbulent flow and the equation of continuity.
- Ideal fluid flow assumptions including steady, nonviscous, incompressible, and irrotational flow.
- Examples calculating pressure, buoyancy force, fluid flow rates, and more.
This document discusses key concepts in fluid mechanics including:
- Density is the ratio of mass to volume and is measured in kg/m3.
- Pressure is force per unit area and is measured in units of N/m2 or Pa.
- Pascal's principle states that pressure applied to a confined fluid is transmitted undiminished throughout the fluid.
- Bernoulli's principle states that as the velocity of a fluid increases, its pressure decreases.
Hydraulic consists of the application of fluid mechanics to water flowing in an isolated environment (pipe, pump) or in an open channel (river, lake, ocean). Civil engineers are primarily concerned with open channel flow, which is governed by the interdependent interaction between the water and the channel. Applications include the design of hydraulic structures, such as sewage conduits, dams and breakwaters, the management of waterways, such as erosion protection and flood protection, and environmental management, such as prediction of the mixing and transport of pollutants in surface water.
Blood finder application project report (1).pdfKamal Acharya
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.
Tools & Techniques for Commissioning and Maintaining PV Systems W-Animations ...Transcat
Join us for this solutions-based webinar on the tools and techniques for commissioning and maintaining PV Systems. In this session, we'll review the process of building and maintaining a solar array, starting with installation and commissioning, then reviewing operations and maintenance of the system. This course will review insulation resistance testing, I-V curve testing, earth-bond continuity, ground resistance testing, performance tests, visual inspections, ground and arc fault testing procedures, and power quality analysis.
Fluke Solar Application Specialist Will White is presenting on this engaging topic:
Will has worked in the renewable energy industry since 2005, first as an installer for a small east coast solar integrator before adding sales, design, and project management to his skillset. In 2022, Will joined Fluke as a solar application specialist, where he supports their renewable energy testing equipment like IV-curve tracers, electrical meters, and thermal imaging cameras. Experienced in wind power, solar thermal, energy storage, and all scales of PV, Will has primarily focused on residential and small commercial systems. He is passionate about implementing high-quality, code-compliant installation techniques.
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
Digital Twins Computer Networking Paper Presentation.pptxaryanpankaj78
A Digital Twin in computer networking is a virtual representation of a physical network, used to simulate, analyze, and optimize network performance and reliability. It leverages real-time data to enhance network management, predict issues, and improve decision-making processes.
Home security is of paramount importance in today's world, where we rely more on technology, home
security is crucial. Using technology to make homes safer and easier to control from anywhere is
important. Home security is important for the occupant’s safety. In this paper, we came up with a low cost,
AI based model home security system. The system has a user-friendly interface, allowing users to start
model training and face detection with simple keyboard commands. Our goal is to introduce an innovative
home security system using facial recognition technology. Unlike traditional systems, this system trains
and saves images of friends and family members. The system scans this folder to recognize familiar faces
and provides real-time monitoring. If an unfamiliar face is detected, it promptly sends an email alert,
ensuring a proactive response to potential security threats.
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...PriyankaKilaniya
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...
Topic3_FluidMotion.pptx
1. Hello!
• I’m Chris Blake, your lecturer for the rest of
semester
• We’ll cover: fluid motion, thermal physics,
electricity, revision
• MASH centre in AMDC 503 - 09.30-16.30 daily
• My consultation hours: Tues 10.30-12.30
• Wayne’s consultation hours: Thurs 2.30-4.30
• cblake@swin.edu.au
• 03 9214 8624
2. Fluid Motion
• Density and Pressure
• Hydrostatic Equilibrium and Pascal’s Law
• Archimedes' Principle and Buoyancy
• Fluid Dynamics
• Conservation of Mass: Continuity Equation
• Conservation of Energy: Bernoulli’s Equation
• Applications of Fluid Dynamics
4. What new physics is involved?
• Fluids can flow from place-
to-place
• Their density can change if
they are compressible (for
example, gasses)
• Fluids are pushed around by
pressure forces
• An object immersed in a fluid
experiences buoyancy
5. Density
𝑑𝑒𝑛𝑠𝑖𝑡𝑦 =
𝑚𝑎𝑠𝑠
𝑣𝑜𝑙𝑢𝑚𝑒
𝜌 =
𝑚
𝑉
𝑈𝑛𝑖𝑡𝑠 𝑎𝑟𝑒
𝑘𝑔
𝑚3
• The density of a fluid is the concentration of mass
• Mass = 100 g = 0.1 kg
• Volume = 100 cm3 = 10-4 m3
• Density = 1 g/cm3 = 1000 kg m3
6. 0%
0%
0%
0%
0%
1 2 3 4 5
The shown cubic vessels contain
the stated matter. Which fluid has
the highest density ?
1 𝑘𝑔 of
water at
73°𝐶
1 𝑘𝑔 of
water at
273°𝐾
1 𝑘𝑔 of
water at
273°𝐶
1 𝑘𝑔 of
water at
373°𝐶
1 𝑚
1 𝑚
1 𝑚
3 𝑚
𝟏.
𝟑.
𝟐.
𝟒.
7. Pressure
• Pressure is the concentration of a force
– the force exerted per unit area
Greater pressure!
(same force, less area)
Exerts a pressure on the
sides and through the fluid
8. Pressure
𝑝 =
𝐹
𝐴
• Units of pressure are N/m2 or Pascals (Pa) – 1 N/m2 = 1 Pa
• Atmospheric pressure = 1 atm = 101.3 kPa = 1 x 105 N/m2
9. 0%
0%
0%
0%
1. 2. 3. 4.
𝑣𝑎𝑐𝑢𝑢𝑚
What is responsible for
the force which holds
urban climber B in place
when using suction cups.
A
B
1. The force of friction
2. Vacuum pressure exerts a pulling
force
3. Atmospheric pressure exerts a
pushing force
4. The normal force of the glass.
10. Hydrostatic Equilibrium
• Pressure differences drive fluid flow
• If a fluid is in equilibrium, pressure forces must balance
• Pascal’s law: pressure change is transmitted through a fluid
11. Hydrostatic Equilibrium with Gravity
Pressure in a fluid is equal to the weight of the fluid per unit area above it:
𝑃 = 𝑃0 + 𝜌𝑔ℎ
𝑃 + 𝑑𝑃 𝐴 − 𝑝𝐴 = 𝑚𝑔
𝑑𝑃 𝐴 = 𝜌 𝐴 𝑑ℎ 𝑔
𝑑𝑃
𝑑ℎ
= 𝜌𝑔
Derivation:
𝑃 = 𝑃0 + 𝜌𝑔ℎ
12. 0%
0%
0%
0%
0%
1. 2. 3. 4. 5.
Consider the three open containers filled with water.
How do the pressures at the bottoms compare ?
1. 𝑷𝑨 = 𝑷𝑩 = 𝑷𝑪
2. 𝑷𝑨 < 𝑷𝑩 = 𝑷𝑪
3. 𝑷𝑨 < 𝑷𝑩 < 𝑷𝑪
4. 𝑷𝑩 < 𝑷𝑨 < 𝑷𝑪
5. Not enough information
A. B. C.
13. 0%
0%
0%
0%
0%
1 2 3 4 5
The three open containers are now filled with oil,
water and honey respectively. How do the pressures
at the bottoms compare ?
1. 𝑷𝑨 = 𝑷𝑩 = 𝑷𝑪
2. 𝑷𝑨 < 𝑷𝑩 = 𝑷𝑪
3. 𝑷𝑨 < 𝑷𝑩 < 𝑷𝑪
4. 𝑷𝑩 < 𝑷𝑨 < 𝑷𝑪
5. Not enough information
A. B. C.
oil water
honey
14. Calculating Crush Depth of a Submarine
Q. A nuclear submarine is rated to withstand a pressure difference
of 70 𝑎𝑡𝑚 before catastrophic failure. If the internal air pressure
is maintained at 1 𝑎𝑡𝑚, what is the maximum permissible depth ?
𝑃 = 𝑃0 + 𝜌𝑔ℎ
𝑃 − 𝑃0 = 70 𝑎𝑡𝑚 = 7.1 × 106 𝑃𝑎 ; 𝜌 = 1 × 103 𝑘𝑔/𝑚3
ℎ =
𝑃 − 𝑃0
𝜌𝑔
=
7.1 × 106
1 × 103 × 9.8
= 720 𝑚
15. Measuring Pressure
Atmospheric pressure can support a 10 meters high
column of water. Moving to higher density fluids
allows a table top barometer to be easily constructed.
𝑝 = 𝑝0 + 𝜌𝑔ℎ
Q. What is height of mercury (Hg)
at 1 𝑎𝑡𝑚 ?
𝜌𝐻𝑔 = 13.6 𝑔/𝑐𝑚3
𝑃 = 𝑃0 + 𝜌𝑔ℎ → ℎ = 𝑃/𝜌𝑔
ℎ =
1 × 105
1.36 × 104 × 9.8
= 0.75 𝑚
16. Pascal’s Law
Q. A large piston supports a car.
The total mass of the piston and
car is 3200 𝑘𝑔. What force must
be applied to the smaller piston ?
Pressure at the same height is the same! (Pascal’s Law)
𝐹1
𝐴1
=
𝐹2
𝐴2
𝐹1 =
𝐴1
𝐴2
𝑚𝑔 =
𝜋 × 0.152
𝜋 × 1.202
× 3200 × 9.8 = 490 𝑁
A1
A2
F2
• Pressure force is transmitted through a fluid
17. Gauge Pressure
Gauge Pressure is the pressure difference from atmosphere. (e.g. Tyres)
𝑃𝑎𝑏𝑠𝑜𝑙𝑢𝑡𝑒 = 𝑃𝑎𝑡𝑚𝑜𝑠𝑝ℎ𝑒𝑟𝑒 + 𝑃
𝑔𝑎𝑢𝑔𝑒
19. Archimedes’ Principle and Buoyancy
The Buoyant Force is equal to the weight of the displaced fluid !
𝐹𝐵 = 𝑚𝑤𝑎𝑡𝑒𝑟 𝑔 = 𝜌𝑤𝑎𝑡𝑒𝑟𝑉𝑔
𝑊 = 𝑚𝑠𝑜𝑙𝑖𝑑 𝑔 = 𝜌𝑠𝑜𝑙𝑖𝑑𝑉𝑔
Objects immersed in a fluid experience a Buoyant Force!
20. Archimedes’ Principle and Buoyancy
The hot-air balloon
floats because the
weight of air displaced
(= the buoyancy force)
is greater than the
weight of the balloon
The Buoyant Force is equal to the weight of the displaced fluid !
21. 0%
0%
0%
0%
0%
1 2 3 4 5
Which of the three cubes of length 𝑙 shown below
has the largest buoyant force ?
A. B. C.
water stone wood
water FB FB FB
m1g m2g m3g
1. 𝒘𝒂𝒕𝒆𝒓
2. 𝒔𝒕𝒐𝒏𝒆
3. 𝒘𝒐𝒐𝒅
4. 𝒕𝒉𝒆 𝒃𝒖𝒐𝒚𝒂𝒏𝒕 𝒇𝒐𝒓𝒄𝒆 𝒊𝒔 𝒕𝒉𝒆 𝒔𝒂𝒎𝒆
5. Not enough information
22. Example Archimedes’ Principle and Buoyancy
The Buoyant Force is equal to the weight of the displaced fluid.
Q. Find the apparent weight of a 60 𝑘𝑔 concrete block when you lift
it under water, 𝜌𝑐𝑜𝑛𝑐𝑟𝑒𝑡𝑒 = 2200 𝑘𝑔/𝑚3
mg
w
b
F
Develop
Assess
Interpret
Water provides a buoyancy force
Evaluate
Apparent weight should be less
apparent
b
net w
F
mg
F
g
m
F water
disp
b Vg
water
V
m
con
con
water
app
mg
mg
w
con
m
V
)
1
(
con
water
app mg
w
N
321
)
2200
1000
1
(
8
.
9
60
23. Floating Objects
Q. If the density of an iceberg is 0.86
that of seawater, how much of an
iceberg’s volume is below the sea?
𝐵𝑢𝑜𝑦𝑎𝑛𝑐𝑦 𝑓𝑜𝑟𝑐𝑒 𝐹𝐵 = 𝑤𝑒𝑖𝑔ℎ𝑡 𝑜𝑓 𝑤𝑎𝑡𝑒𝑟 𝑑𝑖𝑠𝑝𝑙𝑎𝑐𝑒𝑑
𝑉𝑠𝑢𝑏 = 𝑠𝑢𝑏𝑚𝑒𝑟𝑔𝑒𝑑 𝑣𝑜𝑙𝑢𝑚𝑒
𝐹𝐵 = 𝑚𝑤𝑎𝑡𝑒𝑟 𝑔 = 𝜌𝑤𝑎𝑡𝑒𝑟 𝑉𝑠𝑢𝑏 𝑔
𝐼𝑛 𝑒𝑞𝑢𝑖𝑙𝑖𝑏𝑟𝑖𝑢𝑚, 𝐹𝐵 = 𝑤𝑒𝑖𝑔ℎ𝑡 𝑜𝑓 𝑖𝑐𝑒𝑏𝑒𝑟𝑔
𝐹𝐵 = 𝑚𝑖𝑐𝑒 𝑔 = 𝜌𝑖𝑐𝑒 𝑉𝑖𝑐𝑒 𝑔
𝜌𝑤𝑎𝑡𝑒𝑟𝑉𝑠𝑢𝑏 𝑔 = 𝜌𝑖𝑐𝑒𝑉𝑖𝑐𝑒 𝑔 →
𝑉𝑠𝑢𝑏
𝑉𝑖𝑐𝑒
=
𝜌𝑤𝑎𝑡𝑒𝑟
𝜌𝑖𝑐𝑒
= 0.86
24. 0%
0%
0%
0%
0%
1 2 3 4 5
A beaker of water weighs 𝑤1. A block
weighting 𝑤2 is suspended in the water by
a spring balance reading 𝑤3. Does the
scale read
scale
1. 𝒘𝟏
2. 𝒘𝟏 + 𝒘𝟐
3. 𝒘𝟏 + 𝒘𝟑
4. 𝒘𝟏 + 𝒘𝟐 − 𝒘𝟑
5. 𝒘𝟏 + 𝒘𝟑 − 𝒘𝟐
25. Centre of Buoyancy
The Centre of Buoyancy is given by the Centre of Mass of the displaced
fluid. For objects to float with stability the Centre of Buoyancy must be
above the Centre of Mass of the object. Otherwise Torque yield Tip !
26. Fluid Dynamics
Laminar (steady) flow is where each particle in
the fluid moves along a smooth path, and the
paths do not cross.
Turbulent flow above a critical speed, the paths
become irregular, with whirlpools and paths
crossing. Chaotic and not considered here.
Streamlines spacing measures velocity and the
flow is always tangential, for steady flow don’t
cross. A set of streamlines act as a pipe for an
incompressible fluid
Non-viscous flow – no internal friction (water
OK, honey not)
27. Conservation of Mass: The Continuity Eqn.
The rate a fluid enters a pipe must equal the rate the fluid leaves the pipe.
i.e. There can be no sources or sinks of fluid.
“The water all has to go somewhere”
28. Conservation of Mass: The Continuity Eqn.
v1 v2
A1
A2
Q. How much fluid flows across each area in a time ∆𝑡:
v
A
t
m
rate
flow
:
fluid in fluid out
t
v
A
V
m
1
1
1
v1t
A1
v2t
A2
t
v
A
V
m
2
2
2
2
2
1
1
: v
A
v
A
eqn
continuity
29. Conservation of Mass: The Continuity Eqn.
Q. A river is 40m wide, 2.2m deep and flows at 4.5 m/s. It passes
through a 3.7-m wide gorge, where the flow rate increases to 6.0
m/s. How deep is the gorge?
𝐴1 = 𝑤1𝑑1
𝐴2 = 𝑤2𝑑2
𝐶𝑜𝑛𝑡𝑖𝑛𝑢𝑖𝑡𝑦 𝑒𝑞𝑢𝑎𝑡𝑖𝑜𝑛 ∶ 𝐴1𝑣1 = 𝐴2𝑣2 → 𝑤1𝑑1𝑣1 = 𝑤2𝑑2𝑣2
𝑑2 =
𝑤1𝑑1𝑣1
𝑤2𝑣2
=
40 × 2.2 × 4.5
3.7 × 6.0
= 18 𝑚
30. Conservation of Energy: Bernoulli’s Eqn.
v2t
v1t
What happens to the energy density of the fluid if I raise the ends ?
const
v
p
v
p
2
2
2
1
2
2
1
2
1
1
Energy per unit
volume
y1
y2
1
y
g
2
y
g
Total energy per unit volume is constant
at any point in fluid.
const
y
g
v
p
2
2
1
31. Conservation of Energy: Bernoulli’s Eqn.
Q. Find the velocity of water leaving a tank through a hole in the
side 1 metre below the water level.
𝑃 + 1
2
𝜌𝑣2 + 𝜌𝑔𝑦 = 𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡
𝐴𝑡 𝑡ℎ𝑒 𝑡𝑜𝑝: 𝑃 = 1 𝑎𝑡𝑚, 𝑣 = 0, 𝑦 = 1 𝑚
𝐴𝑡 𝑡ℎ𝑒 𝑏𝑜𝑡𝑡𝑜𝑚: 𝑃 = 1 𝑎𝑡𝑚, 𝑣 =? , 𝑦 = 0 𝑚
𝑃 + 𝜌𝑔𝑦 = 𝑃 + 1
2𝜌𝑣2
𝑣 = 2𝑔𝑦 = 2 × 9.8 × 1 = 4.4 𝑚/𝑠
32. 0%
0%
0%
0%
0%
1 2 3 4 5
Which of the following can be
done to increase the flow rate out
of the water tank ? ℎ
𝐻
1. Raise the tank (↑ 𝑯)
2. Reduce the hole size
3. Lower the water level (↓ 𝒉)
4. Raise the water level (↑ 𝒉)
5. None of the above
34. Lift on a wing is often explained in textbooks by Bernoulli’s Principle: the air over the
top of the wing moves faster than air over the bottom of the wing because it has further
to move (?) so the pressure upwards on the bottom of the wing is smaller than the
downwards pressure on the top of the wing.
Is that convincing? So why can a plane fly upside down?
Bernoulli’s Effect and Lift
Newton’s 3rd law
(air pushed downwards)
𝑃 + 1
2𝜌𝑣2 + 𝜌𝑔𝑦 = 𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡
35. Chapter 15 Fluid Motion Summary
Examples 15.6, 15.7 Bernoulli's Equation – Draining a Tank and Venturi Flow
Examples 15.5 Continuity Equation: Ausable Chasm
Examples 15.3 , 15.4 Buoyancy Forces: Working Underwater + Tip of Iceberg
• Density and Pressure describe bulk fluid behaviour
• In hydrostatic equilibrium, pressure increases with depth due to gravity
• Fluid flow conserves mass (continuity eq.) and energy (Bernoulli’s equation)
• Reread, Review and Reinforce concepts and techniques of Chapter 15
• A constriction in flow is accompanied by a velocity and pressure change.
• The buoyant force is the weight of the displaced fluid
• Pressure in a fluid is the same for points at the same height
Examples 15.1 , 15.2 Calculating Pressure and Pascals Law