Zeus Numerix Pvt. Ltd. is an engineering company that provides computational fluid dynamics (CFD) solutions. They analyzed parachute designs for the Aerial Delivery Research and Development Establishment (ADRDE) using CFD. The project involved modeling elliptical, conical, ringslot, and PTA-G2 parachute geometries in CAD software. Meshes were generated in ICEM CFD and simulations run in CFD Expert Lite to compute drag forces, coefficients, pressures, and velocities. Results were visualized in Paraview. The analysis aimed to help optimize parachute designs.
The flow across an airfoil is studied for different angle of attack. The CFD analysis results are documented and studied for different angle of attack using fluent & gambit.
This document summarizes a computational fluid dynamics (CFD) analysis of flow over a NACA 0012 airfoil at attack angles of 2 and 14 degrees. Meshes with 15,000 and 40,000 elements were tested, with lift and drag coefficients increasing with higher mesh resolution and attack angle. Pressure contours, velocity vectors, and other flow visualizations were obtained from the CFD simulations in ANSYS. While mesh independence was achieved at 2 degrees, it was not at 14 degrees, which is above the airfoil's stall angle.
This document discusses the V-n diagram, which plots the velocity of an aircraft against the load factor it experiences. It outlines how load factors are calculated based on the lift and weight of the aircraft. Limit, proof and ultimate load factors are explained which specify the maximum loads aircraft structures must be designed to withstand. Typical load factors for different aircraft types are shown, with fighters experiencing the highest positive load factors due to high-performance maneuvering. The V-n diagram defines the flight envelope and structural limits for an aircraft.
1) The document discusses a study and CFD analysis of an aerofoil at different angles of attack. It outlines the inputs and boundary conditions used in the CFD model including the velocity, temperature, pressure, and turbulence model.
2) The methodology section describes how the aerofoil model was created in CAD software and meshed. The solver settings applied in the CFD analysis are also outlined.
3) The results and discussion section analyzes the static pressure contours on the aerofoil surface at different angles of attack from 0° to 22.5°. It is observed that lift increases with angle of attack until 20°, beyond which stall may occur.
In the material testing laboratory, Tensile test was done on a mild steel specimen as figure 4 to identify the young’s modulus, ultimate tensile strength, yield strength and percentage elongation. The results were as table 1
The document describes how to use ANSYS's Report Generator tool to create an HTML report summarizing the results of an analysis. Key steps include: capturing images, animations, tables and lists from the model results; assembling these into a report with headings and descriptive text; and previewing and saving the completed report.
The flow across an airfoil is studied for different angle of attack. The CFD analysis results are documented and studied for different angle of attack using fluent & gambit.
This document summarizes a computational fluid dynamics (CFD) analysis of flow over a NACA 0012 airfoil at attack angles of 2 and 14 degrees. Meshes with 15,000 and 40,000 elements were tested, with lift and drag coefficients increasing with higher mesh resolution and attack angle. Pressure contours, velocity vectors, and other flow visualizations were obtained from the CFD simulations in ANSYS. While mesh independence was achieved at 2 degrees, it was not at 14 degrees, which is above the airfoil's stall angle.
This document discusses the V-n diagram, which plots the velocity of an aircraft against the load factor it experiences. It outlines how load factors are calculated based on the lift and weight of the aircraft. Limit, proof and ultimate load factors are explained which specify the maximum loads aircraft structures must be designed to withstand. Typical load factors for different aircraft types are shown, with fighters experiencing the highest positive load factors due to high-performance maneuvering. The V-n diagram defines the flight envelope and structural limits for an aircraft.
1) The document discusses a study and CFD analysis of an aerofoil at different angles of attack. It outlines the inputs and boundary conditions used in the CFD model including the velocity, temperature, pressure, and turbulence model.
2) The methodology section describes how the aerofoil model was created in CAD software and meshed. The solver settings applied in the CFD analysis are also outlined.
3) The results and discussion section analyzes the static pressure contours on the aerofoil surface at different angles of attack from 0° to 22.5°. It is observed that lift increases with angle of attack until 20°, beyond which stall may occur.
In the material testing laboratory, Tensile test was done on a mild steel specimen as figure 4 to identify the young’s modulus, ultimate tensile strength, yield strength and percentage elongation. The results were as table 1
The document describes how to use ANSYS's Report Generator tool to create an HTML report summarizing the results of an analysis. Key steps include: capturing images, animations, tables and lists from the model results; assembling these into a report with headings and descriptive text; and previewing and saving the completed report.
Fluid flow visualization is a technique to actually see the flow patterns and get an insight in the possible theory to be applied. To see is to believe, it's said, hence this technique is very effective in understanding of fluid flow phenomena.
lab report structure deflection of cantileverYASMINE HASLAN
1. This experiment examines the deflection of cantilever beams made of aluminum, brass, and steel when subjected to increasing point loads.
2. The experiment measured the actual deflection of each beam for loads from 0-500g and calculated the theoretical deflection based on the beam's material properties.
3. The results showed aluminum had the largest deflection, brass was intermediate, and steel had the smallest deflection, as expected based on their moduli of elasticity. The actual deflection was always greater than the theoretical deflection.
Dr. Himadri Banerji presented at the 2nd FSRU Conference in Singapore on risk management in LNG FSRU projects. He discussed key risks including construction delays and cost overruns, operational issues, upstream and downstream market volatility, and political and legal risks. Effective risk allocation and control requires well-defined contracts that allocate risks to parties best able to manage them. Non-recourse project financing is increasingly common through structures that limit risks for terminal operators, such as tolling agreements that transfer supply and market risks. Evolving contract and insurance structures also help manage risks in LNG FSRU projects.
this document contains a list of experiments which is performed in the fluid mechanics laboratory.As this in not a professional document there might be some mistakes in the observations or plots, the writer and the publisher is a student of civil engineering at UET Peshawar.
This document describes the working principle and experimental setup for calibrating a venturimeter. A venturimeter consists of an inlet section followed by a converging section, cylindrical throat, and gradually diverging cone. It works by creating a pressure difference between the inlet and throat sections due to an increase in flow velocity at the throat. This pressure difference is measured to determine the flow rate. The experiment involves taking pressure and flow rate measurements at the inlet and throat sections using a manometer and collecting water over time. The data is then used to calculate discharge coefficients and Reynolds numbers to calibrate the venturimeter.
This document discusses mesh quality parameters and the penalty approach in finite element analysis. It defines key parameters that affect mesh quality such as skewness, aspect ratio, warp angle, and Jacobian. Values for tetrahedral meshing are also defined, including tetra collapse, volumetric skew, stretch, and distortion. The document explains that improving element quality manually or through automatic programs can enhance accuracy. It concludes with an overview of the penalty approach theory in finite element analysis.
This mini project is based on Pascal's Law. Upload of the file is only for education purpose. New commerce from science background can get a basic idea to do a mini project.
The document discusses different types of meshes used in computational fluid dynamics (CFD) simulations. It explains that meshes are used to discretize spatial domains and store field variable values. Structured meshes include Cartesian, multi-block, and patched block grids, while unstructured meshes include Delaunay triangulations and advancing front methods. Various algorithms for generating meshes are also presented, such as inserting points sequentially or using grid-based, centroid-based, or advancing front approaches. Both benefits and challenges of different meshing methods are summarized.
This document discusses various aerodynamic characteristics of airfoils and wings. It describes how aerodynamic forces are generated by pressure and shear stress distributions on surfaces. It also defines key terms like lift, drag, angle of attack, center of pressure, aerodynamic center. Methods to increase lift or reduce drag like high-lift devices, supercritical airfoils, and winglets are explained. Different types of airfoils and their characteristics are also summarized.
Vibration and frequency measuring instrumentsPrashant thakur
This presentation is about the basic concepts of vibration & Frequency measuring instruments and their types.
The slides contains the best picture as example of the theory portion.
The document presents a computational fluid dynamics analysis of flow over NACA airfoils using ANSYS Fluent. It describes modeling NACA-4412, NACA-6409, and NACA-0012 airfoils, applying boundary conditions, and analyzing lift, drag, velocity and pressure distributions. The analysis found that NACA-4412 had a higher lift-to-drag ratio than NACA-6409. Additionally, increasing the angle of attack was found to initially increase lift and drag coefficients until a certain point, after which lift decreased while drag continued increasing.
The document describes a project to create an autonomous flying surveillance robot (FSR) that can operate indoors and outdoors under any weather conditions. A group of 4 students from Lokmanya Tilak College of Engineering are developing the FSR. It will use a camera for aerial surveillance and inspection. Sensors and a PID control system will stabilize the flying robot and make it easier to control. The FSR has applications in hazardous environments, defense, security, inspections, and more.
This document is a project report submitted by three students for their Bachelor of Technology degree. It outlines the design and implementation of an unmanned aerial vehicle (UAV) in the form of a quadcopter for campus surveillance. The quadcopter will house a camera and use a wireless transmission system to provide live video feed from the camera to a ground station. Sensors such as an IMU and GPS will be used to help stabilize and navigate the quadcopter. An onboard processor and flight controller using Arduino will control the quadcopter. The project aims to develop a low-cost and lightweight surveillance drone.
Design and Analysis of Shock Absorber for 150cc BikeAbu Sufyan Malik
Shock absorber is a mechanical device designed to damp shock impulses and dissipate kinetic energy. It reduces the effect of traveling over rough ground which leads to improved ride quality and increase in comfort because it substantially reduced amplitude of disturbances. In this project, a shock absorber is designed and a 3D model is created using Pro-E. Analysis is done by varying loads and materials at different conditions. Structural analysis is done to determine total deformation, stress and strain variations. Modal analysis is done to determine the displacements for different frequencies for different number of modes. In the end results are compared for two materials to verify the best one for the given suspension system.
The document discusses the design and development of quadcopter unmanned aerial vehicles (UAVs). It describes the prototypes created, including improvements made to reduce weight and increase lift. Sensors and controllers are discussed, including sensors for position, proximity, and navigation. The final prototype achieved stable hovering with a weight of 43 grams and incorporated an inertial measurement unit, ultrasonic sensors, GPS, and radio frequency transmission for control and data transmission.
In accordance with the present dependence on UAVs and Drones, these Unmanned Aerial Vehicles have proved them a great asset. These UAVs are expected to serve a great role in almost every field like military, agriculture, police, disaster management, industrial management, educational field etc. in the coming future which has been described in the given slides.
introduction, drawing, calculation for winch designAman Huri
The document provides information about designing a winch that can withstand a maximum load of 15kN and uses a cable with a diameter of 14mm.
It begins with an introduction to winches, their components, and operation systems. It then discusses the problem statement of designing a winch for pulling up boat anchors. The key design requirements are that it withstands 15kN of load and uses 14mm diameter cable.
The summary discusses the components that will be included in the design - the wire rope, drum, gears, and other parts. It provides calculations for selecting the appropriate wire rope and determining the drum dimensions based on withstanding the load requirement. Gears are also designed with calculations of number of teeth
Above lecture can be downloaded from www.zeusnumerix.com
The presentation deals with advanced topics in simulation in lecture 3 of 4. The lecture aims to introduce the user to optimization in CFD. Apart from explaining the usual CFD procedure, the presentation also showcases two case studies. In the first case study, an airfoil shape is optimized using the genetic algorithm approach. The 2D example shows the basics. A real-life 3D example of optimization of the winglet is shown. Variation in the aerodynamic performance of the winglet due to change in shape is elaborated. The optimization happens for bending moment and induced drag.
IRJET-CFD Analysis of conceptual Aircraft bodyIRJET Journal
The document analyzes the aerodynamic performance of a conceptual aircraft model through computational fluid dynamics (CFD). CFD analysis is performed on the aircraft model at different angles of attack and taper ratios to determine lift and drag forces. The results show that lift force increases with angle of attack up to stall angle, while drag force also increases. Higher taper ratios are found to generate more lift force and less drag force compared to lower taper ratios. The CFD results provide valuable data to evaluate the aircraft design for applications in fighter jets, commercial aircraft, and drones.
Fluid flow visualization is a technique to actually see the flow patterns and get an insight in the possible theory to be applied. To see is to believe, it's said, hence this technique is very effective in understanding of fluid flow phenomena.
lab report structure deflection of cantileverYASMINE HASLAN
1. This experiment examines the deflection of cantilever beams made of aluminum, brass, and steel when subjected to increasing point loads.
2. The experiment measured the actual deflection of each beam for loads from 0-500g and calculated the theoretical deflection based on the beam's material properties.
3. The results showed aluminum had the largest deflection, brass was intermediate, and steel had the smallest deflection, as expected based on their moduli of elasticity. The actual deflection was always greater than the theoretical deflection.
Dr. Himadri Banerji presented at the 2nd FSRU Conference in Singapore on risk management in LNG FSRU projects. He discussed key risks including construction delays and cost overruns, operational issues, upstream and downstream market volatility, and political and legal risks. Effective risk allocation and control requires well-defined contracts that allocate risks to parties best able to manage them. Non-recourse project financing is increasingly common through structures that limit risks for terminal operators, such as tolling agreements that transfer supply and market risks. Evolving contract and insurance structures also help manage risks in LNG FSRU projects.
this document contains a list of experiments which is performed in the fluid mechanics laboratory.As this in not a professional document there might be some mistakes in the observations or plots, the writer and the publisher is a student of civil engineering at UET Peshawar.
This document describes the working principle and experimental setup for calibrating a venturimeter. A venturimeter consists of an inlet section followed by a converging section, cylindrical throat, and gradually diverging cone. It works by creating a pressure difference between the inlet and throat sections due to an increase in flow velocity at the throat. This pressure difference is measured to determine the flow rate. The experiment involves taking pressure and flow rate measurements at the inlet and throat sections using a manometer and collecting water over time. The data is then used to calculate discharge coefficients and Reynolds numbers to calibrate the venturimeter.
This document discusses mesh quality parameters and the penalty approach in finite element analysis. It defines key parameters that affect mesh quality such as skewness, aspect ratio, warp angle, and Jacobian. Values for tetrahedral meshing are also defined, including tetra collapse, volumetric skew, stretch, and distortion. The document explains that improving element quality manually or through automatic programs can enhance accuracy. It concludes with an overview of the penalty approach theory in finite element analysis.
This mini project is based on Pascal's Law. Upload of the file is only for education purpose. New commerce from science background can get a basic idea to do a mini project.
The document discusses different types of meshes used in computational fluid dynamics (CFD) simulations. It explains that meshes are used to discretize spatial domains and store field variable values. Structured meshes include Cartesian, multi-block, and patched block grids, while unstructured meshes include Delaunay triangulations and advancing front methods. Various algorithms for generating meshes are also presented, such as inserting points sequentially or using grid-based, centroid-based, or advancing front approaches. Both benefits and challenges of different meshing methods are summarized.
This document discusses various aerodynamic characteristics of airfoils and wings. It describes how aerodynamic forces are generated by pressure and shear stress distributions on surfaces. It also defines key terms like lift, drag, angle of attack, center of pressure, aerodynamic center. Methods to increase lift or reduce drag like high-lift devices, supercritical airfoils, and winglets are explained. Different types of airfoils and their characteristics are also summarized.
Vibration and frequency measuring instrumentsPrashant thakur
This presentation is about the basic concepts of vibration & Frequency measuring instruments and their types.
The slides contains the best picture as example of the theory portion.
The document presents a computational fluid dynamics analysis of flow over NACA airfoils using ANSYS Fluent. It describes modeling NACA-4412, NACA-6409, and NACA-0012 airfoils, applying boundary conditions, and analyzing lift, drag, velocity and pressure distributions. The analysis found that NACA-4412 had a higher lift-to-drag ratio than NACA-6409. Additionally, increasing the angle of attack was found to initially increase lift and drag coefficients until a certain point, after which lift decreased while drag continued increasing.
The document describes a project to create an autonomous flying surveillance robot (FSR) that can operate indoors and outdoors under any weather conditions. A group of 4 students from Lokmanya Tilak College of Engineering are developing the FSR. It will use a camera for aerial surveillance and inspection. Sensors and a PID control system will stabilize the flying robot and make it easier to control. The FSR has applications in hazardous environments, defense, security, inspections, and more.
This document is a project report submitted by three students for their Bachelor of Technology degree. It outlines the design and implementation of an unmanned aerial vehicle (UAV) in the form of a quadcopter for campus surveillance. The quadcopter will house a camera and use a wireless transmission system to provide live video feed from the camera to a ground station. Sensors such as an IMU and GPS will be used to help stabilize and navigate the quadcopter. An onboard processor and flight controller using Arduino will control the quadcopter. The project aims to develop a low-cost and lightweight surveillance drone.
Design and Analysis of Shock Absorber for 150cc BikeAbu Sufyan Malik
Shock absorber is a mechanical device designed to damp shock impulses and dissipate kinetic energy. It reduces the effect of traveling over rough ground which leads to improved ride quality and increase in comfort because it substantially reduced amplitude of disturbances. In this project, a shock absorber is designed and a 3D model is created using Pro-E. Analysis is done by varying loads and materials at different conditions. Structural analysis is done to determine total deformation, stress and strain variations. Modal analysis is done to determine the displacements for different frequencies for different number of modes. In the end results are compared for two materials to verify the best one for the given suspension system.
The document discusses the design and development of quadcopter unmanned aerial vehicles (UAVs). It describes the prototypes created, including improvements made to reduce weight and increase lift. Sensors and controllers are discussed, including sensors for position, proximity, and navigation. The final prototype achieved stable hovering with a weight of 43 grams and incorporated an inertial measurement unit, ultrasonic sensors, GPS, and radio frequency transmission for control and data transmission.
In accordance with the present dependence on UAVs and Drones, these Unmanned Aerial Vehicles have proved them a great asset. These UAVs are expected to serve a great role in almost every field like military, agriculture, police, disaster management, industrial management, educational field etc. in the coming future which has been described in the given slides.
introduction, drawing, calculation for winch designAman Huri
The document provides information about designing a winch that can withstand a maximum load of 15kN and uses a cable with a diameter of 14mm.
It begins with an introduction to winches, their components, and operation systems. It then discusses the problem statement of designing a winch for pulling up boat anchors. The key design requirements are that it withstands 15kN of load and uses 14mm diameter cable.
The summary discusses the components that will be included in the design - the wire rope, drum, gears, and other parts. It provides calculations for selecting the appropriate wire rope and determining the drum dimensions based on withstanding the load requirement. Gears are also designed with calculations of number of teeth
Above lecture can be downloaded from www.zeusnumerix.com
The presentation deals with advanced topics in simulation in lecture 3 of 4. The lecture aims to introduce the user to optimization in CFD. Apart from explaining the usual CFD procedure, the presentation also showcases two case studies. In the first case study, an airfoil shape is optimized using the genetic algorithm approach. The 2D example shows the basics. A real-life 3D example of optimization of the winglet is shown. Variation in the aerodynamic performance of the winglet due to change in shape is elaborated. The optimization happens for bending moment and induced drag.
IRJET-CFD Analysis of conceptual Aircraft bodyIRJET Journal
The document analyzes the aerodynamic performance of a conceptual aircraft model through computational fluid dynamics (CFD). CFD analysis is performed on the aircraft model at different angles of attack and taper ratios to determine lift and drag forces. The results show that lift force increases with angle of attack up to stall angle, while drag force also increases. Higher taper ratios are found to generate more lift force and less drag force compared to lower taper ratios. The CFD results provide valuable data to evaluate the aircraft design for applications in fighter jets, commercial aircraft, and drones.
CFD Analysis of conceptual Aircraft bodyIRJET Journal
The document analyzes the aerodynamic performance of a conceptual aircraft model through computational fluid dynamics (CFD). CFD analysis is performed on the aircraft model at different angles of attack and taper ratios to determine lift force, drag force, pressure distribution, and other parameters. The results show that lift force increases with angle of attack up to the stall point, while drag force also increases. Higher taper ratios are found to generate more lift force and less drag force compared to lower taper ratios. The CFD results provide valuable data to evaluate the design of the conceptual aircraft for applications such as fighter jets, commercial aircraft, and drones.
This document summarizes Rohit Bhagat's mechanical engineering portfolio, including 8 projects from 2012-present. The projects involve designing a cocoa bean grinding and winnowing station, a vertical reciprocating conveyor, a cable-driven 3D printer, optimizing riblet structures on UAV wings for drag reduction, minimizing dampers in earthquake-prone buildings using genetic algorithms, automating production of a lifting trolley, modeling an airplane and power drill using FEA, and using an Arduino microcontroller to calibrate a thermistor and control a stepper motor. Solidworks and ANSYS were used for modeling and simulations. The projects demonstrate Rohit's skills in design, analysis, automation, and programming for
This document summarizes a training seminar on solving fluid flow problems using CFD software. The seminar was held at the Centre For Fire, Explosive & Environmental Safety (CFEES) under DRDO. The seminar covered an introduction to CFD modeling strategies and objectives to solve (1) hydraulic pipe network problems using Flowmaster software and (2) combustion gas flow through an exhaust duct of a lab-scale facility using Flowmaster and Fluent. The document provides details on modeling steps, input parameters, and results for both objectives.
CFD Lecture (7/8): Best Practices in CFDAbhishek Jain
Above lecture can be downloaded from www.zeusnumerix.com
The presentation gives an overview of the guidelines that the user needs to follow to get accurate results from CFD. Initial part of the presentation emphasizes that the mesh quality largely affects the solution accuracy. Meshing guidelines for flows are written. Use of proper boundary conditions and initial conditions is elaborated.
DESIGN AND ANALYSIS OF SLAT OPERATED BRAKING SYSTEMIRJET Journal
This document summarizes a research paper that designed and analyzed a slat-operated braking system for aircraft. The system aims to reduce the crosswind effect during landing and improve braking efficiency. The researchers used CATIA to design an airfoil with a leading edge slat and analyzed it in ANSYS Fluent to compare lift and drag coefficients to a standard airfoil without a slat. Results showed that the slat design reduced lift as intended, allowing for safer landings during crosswinds and shorter landing distances.
DRAG REDUCTION ANALYSIS OF A V-GUTTER IN AN AFTER-BURNER BY GEOMETRICAL MODIF...IRJET Journal
This document discusses computational fluid dynamics (CFD) analysis of drag reduction for a V-shaped gutter used in aircraft jet engine afterburners. V-gutters are flame stabilizers that experience drag when not in use, reducing engine efficiency. The study models three V-gutter designs using ANSYS Fluent software: the original design, and two modified designs (one curved, one linear). It simulates airflow and calculates drag forces, finding the linear modified design experiences the lowest drag of 1128.4947N, indicating it could improve afterburner performance through reduced drag during non-use compared to the original design. In conclusion, modifying the V-gutter shape can reduce drag and thus potentially enhance
Sk M Mobassarul Haque completed a project titled "3D Modelling of Aircraft In DS - CATIA V5" under the supervision of Bijoy Naskar from February 9th, 2022 to April 12th, 2022 in partial fulfillment of the requirements for a B.Tech degree in Mechanical Engineering from Dr BC Roy Engineering College, Durgapur. The project involved designing a 3D model of a Boeing 787 aircraft using the CAD software CATIA. Key parts modeled included the fuselage, wing, engine, vertical tail, and horizontal tail. The individual part designs were then assembled to create the final aircraft model. Mobassarul gained valuable experience in using CATIA for
The presentation was made at the "Business Meet on Applications of solar drying systems in domestic, industrial and commercial applications", SPRERI, Anand, India.
It presents the advantages of CFD as a design tool to design better solar drying systems.
For my blogs kindly refer: https://www.learncax.com/knowledge-base/blog/by-author/ganesh-visavale
This document summarizes a master's thesis presentation on investigating the performance of high solidity H-rotor Darrieus vertical axis wind turbines (VAWTs) with multiple airfoil configurations using computational fluid dynamics (CFD) software. The objectives were to evaluate VAWT performance with multiple airfoils, develop an efficient process for testing profiles, and provide a robust platform for future work. OpenFOAM was used to generate meshes and simulate cases. Results showed that the NACA 0018 airfoil emerged as most efficient due to its shape, thickness, and accounting for turbulence interference from leading airfoils. Developing CFD utilities improved meshing and analysis efficiency.
CFD Apps - https://cfdapps.appspot.com - is a webbased portal for undertaking application specific Computational Fluid Dynamics (CFD) simulation. This presentation presents the recently released app that targets the simulation of wind in urban environment. The presentation covers the following subjects:
- Why undertake a CFD study of urban wind environment?
- How does the Urban Wind Study App work?
- Two validation cases where the CFD Apps results are compared to experimental results;
- A discussion of security aspects associated with the use of CFD Apps that users should be aware of.
Land Systems Presentation @ Zeus NumerixAbhishek Jain
Above presentation (including animations) can be downloaded from www.zeusnumerix.com
The technical presentation is a collection of case studies for the design and development projects for Land Systems. Examples include main battle tanks, infantry combat vehicles, towed artillery guns, and small arms. User will see technical description for muzzle brake design, range table for artillery shells, infantry combat vehicle floatation, and internal ballistics etc.
The document summarizes a student project aimed at studying laminar flow control. It describes setting up tests to measure wind tunnel turbulence levels using spheres and hot wire probes. Sphere tests indicated a turbulence intensity of 0.9%, while hot wire tests gave lower and inconsistent readings. Plans were made to test flat and wavy plates but the flat plate could not be manufactured due to budget and facility limitations. While initial goals were to study laminar flow transition on different plate designs, the project focused on characterizing the wind tunnel turbulence levels which showed discrepancies between the sphere and hot wire methods.
SimScale’s Multi-Direction Pedestrian Wind Comfort Analysis tool is demonstrated in this free webinar. With the new professional feature, engineers, planners, and architects alike can simplify the process of calculating wind comfort. This tool will help to improve the accuracy of wind calculations, aggregate data, and evaluate the yearly average wind comfort anywhere at any location in the world.
Take a look at the webinar recording on YouTube: https://www.youtube.com/watch?v=gNC9FxnJQOg&feature=youtu.be
CFD Analysis of ATGM Configurations -- Zeus NumerixAbhishek Jain
Above Research Paper can be downloaded from www.zeusnumerix.com
The research paper aims to study the aerodynamic configuration of anti-tank guided missile (ATGM). Effect of rotation of the ATGM on it own axis is simulated along with the curved fins. Areas of flow separation and higher drag are visualized using the variation of axial force along the length. The paper emphasizes on the contribution of base drag to the total drag. Authors A Venkateshwarlu and Hem Raj (BDL), Kumar Mihir and Sanjay Kumar (Zeus Numerix), Prof KE Prasad JNTU.
Controls, Dynamics, Guidance @ Zeus NumerixAbhishek Jain
Above presentation (including animations) can be downloaded from www.zeusnumerix.com
The technical presentation on Dynamics and Controls is a collection of engineering software development projects in the area. The case studies reveal details of projects on development of fire control computer for artillery rockets, Proportional navigation or PN guidance for missiles, guidance kit of rockets and controllers for industrial equipment like inventory warehouse etc.
High Fidelity Wind Model Software for Real-Time Simulation PlatformsSimspace Ingeniería SL
A High Fidelity Wind Model Software for Real-Time Simulation Platforms was published and presented for the first time at the 2015 I/ITSEC. I/ITSEC is the The World’s Largest Modeling & Training Conference.
Zeus Numerix boasts of the most experienced and largest team for CFD services in India. HVAC CFD is one of the focus areas with engagement in simulations for tallest building in India.
Get Details :
https://www.zeusnumerix.com/high-speed-aerodynamics/
Comparative Study on Analysis of G+10 Regular Residential Building subjected ...IRJET Journal
The document compares the analysis of a G+10 residential building using STAAD.Pro and ETABS software. Both software were used to model and analyze the building subjected to wind loads. The results obtained from both software for member forces like axial force, shear force, bending moment and deflections were then compared. In general, STAAD.Pro provided slightly higher values than ETABS for shear forces, bending moments and deflections. However, ETABS was found to be more user friendly. Both software are commonly used for structural analysis but show some minor differences in results.
Similar to Modeling, Simulation and Analysis of Parachutes. (20)
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
Modeling, Simulation and Analysis of Parachutes.
1. CFD Analysis
Modeling, Simulation and Analysis of
Parachute Design
By:
Shivam Chaubey
Technical Intern
National Institute of Technology Silchar
Under:
Mr. Basant Kumar Gupta
Chief Executive
ZEUS NUMERIX Pvt. Ltd.