Week 4.1: Project - Steady state simulation of flow over a throttle body

AIM: To perform a fluid-surface interaction simulation for a practical problem using ANSYS FLUENT. THEORY:  FLUID SURFACE INTERACTION   Fluid-structure interaction (FSI) is the multiphysics study of how fluids and structures interact. The fluid flow may exert pressure and/or thermal loads on the structure.…

OBJECTIVE: Clean the geomtery, merge all 3 models and perform surface wrap. INTRODUCTION: Surface wrap is the process of meshing where the designer is only interested in the outside surface of the assembly i.e., the component inside the volume will be kept as it is. This kind of meshing is only used for the simulation…

OBJECTIVE: For the given model of tesla's Cyber truck, check and solve all geometrical errors and Assign appropriate PIDs. Perform meshing with the suitable Target length and element Quality criteria and also create a wind tunnel and perform volumetric mesh.     PROCEDURE:             …

OBJECTIVE: To perform CFD meshing of the car and create wind tunnel. PROCEDURE: We import the provided CAD model in ANSA, The resolution the received car model was very low and because of that the edges of the vehicles are not in their better shape. This causes the misinterpretation of the shape of the component. The "fine"…

THEORY: Historically, the most widely produced internal combustion engines were of the Port Fuel Injected (PFI) design, where the fuel is sprayed into the intake ports to mix with incoming air. In fact, many new vehicles are still manufactured with this engine design. The fuel injectors in PFI configurations are typically…

OBJECTIVE: To perfrom surface meshing and volumetric meshing of a turbocharger.  PROCEDURE: We start by importing the geometry in ANSA and the very first task we perform is to change the coloring method from entity to PID and a geometry check using the ANSA template. Upon performing the geometry check we got…

OBJECTIVE: To perform surface meshing on a pressure valve. PROCEDURE:  We start by importing the geometry file in ANSA software, after which the very  first step is to perform a geometry check with selected criteria as per the meshing requirement so that if there is any error in the geometry imported we…

AIM: To perform a fluid-surface interaction simulation for a practical problem using ANSYS FLUENT. THEORY:  FLUID SURFACE INTERACTION   Fluid-structure interaction (FSI) is the multiphysics study of how fluids and structures interact. The fluid flow may exert pressure and/or thermal loads on the structure.…

Questions based on PFI Engine: Q1. What is the Compression ratio for the engine? Compression ratio is defined as the ratio of the maximum to minimum volume in the cylinder of an internal combustion engine. A high compression ratio is desirable because it allows an engine to extract more mechanical energy from a given…

OBJECTIVE: To run the simulation of two type of piston bowl and characterize the emission and performance. THEORY:  Diesel engine is widely used for non-road purposes, as well as transportation purposes because of its thermal efficiency, reliability and fuel economy. Diesel engine technology with higher efficiency…

OBJECTIVE: To perfrom aerofoil stall aerodynamic simulation for NACA6409 in OpenFOAM. THEORY: DRAG Drag is a mechanical force. It is generated by the interaction and contact of a solid body with a fluid. For drag to be generated, the solid body must be in contact with the fluid. If there is no fluid, there is no drag.…

OBJECTIVE: Perform a steady-state conjugate heat transfer analysis on a graphics card setup. THEORY: The term conjugate heat transfer (CHT) is used to describe processes which involve variations of temperature within solids and fluids, due to thermal interaction between the solids and fluids. The exchange of thermal energy…

THEORY Electric Vehicles (EVs) are vehicles that are powered by electrical energy. The main components of an EV are a motor/generator, motor controller, power converters, wheels, and batteries. The electric motor is used to provide the power required for the wheels to move and provide traction. The motor controller and…

OBJECTIVE: Reynolds-averaged Navier-Stokes derivation and analysis THEORY: The RANS equations are time-averaged equations of motion for fluid flow. The idea behind the equations is Reynolds decomposition, wherein an instantaneous quantity is decomposed into its time-averaged and fluctuating…

Objective: To set up a transient shock tube simulation. Theory: The shock tube is an instrument used to replicate and direct blast waves at a sensor or a model in order to simulate actual explosions and their effects, usually on a smaller scale. Shock tubes (and related impulse facilities such as shock tunnels,…

OBJECTIVE: To simulate a conjugate heat transfer flow simulation through a pipe. THEORY: CONJUGATE HEAT TRANSFER. Conduction is the process by which heat energy is transmitted through collisions between neighbouring atoms or molecules. Conduction occurs more readily in solids. Convection is the transfer of heat…

OBJECTIVE: To perform a Prandtl-Meyer Shock problem simulation using CONVERGE STUDIO. THEORY: Shock flow boundary conditions When solving any partial differential equation, we need initial and boundary conditions, initial condition define the starting point of the solution and boundary condition define the domain of the…

OBJECTIVE: To simulate steady-state flow over a throttle body. THEORY: In a conventional gasoline engine, a throttle valve is used in the intake manifold to reduce the power output for part-load operation. Varying the throttle position controls the amount of air-fuel mixture inside the engine, while the…

OBJECTIVE: To simulate steady-state flow over a throttle body. THEORY: In a conventional gasoline engine, a throttle valve is used in the intake manifold to reduce the power output for part-load operation. Varying the throttle position controls the amount of air-fuel mixture inside the engine, while the AFR is…

OBJECTIVE: To Simulatea flow over backward facing step THEORY: Backward facing step flow is widley used in industrial testing to verify the CFD simulations model created before actually testing them on the main parts/models/bodies so as in order to verify the accuracy of the CFD simulation model, as we have a lot…

OBJECTIVE: TO SIMULATE A CHANNEL FLOW USING CONVERGE CFD  THEORY: The flow through a rectangular channels attains a parabolic profile due to the 0 velocity near walls because of No slip condition and when we move vertically towards the centre of the cross-section of rectangular channel we observe that the flow attains…

OBJECTIVE: To simulate combustion of natural gas. THEORY: Combustion is defined as the process of chemical reaction where hydrocarbon fuels react with an oxidant to form products, accompanied by release of energy in form of heat. Combustion process is an integral part of many engineering applications like combustion in…

OBJECTIVE:  To perform parametric study on gate vale by varying the opening of the gate disc. THEORY: A gate valve controls the flow of fluid by varying the opening of the gate disc. The opening is varied by either lifting the gate disc or lowering the gate by use spindle. When the gate is fully opened then there…

OBJECTIVE: To simulate oil-sloshing effect inside a gear box using user defined function. THEORY: SLOSHING In fluid dynamics, slosh refers to the movement of liquid inside other object (which typically is also in motion). The liquid must have a free surface to constitute a slosh dynamic problem, where the dynamics…

OBJECTIVE: To simulate cyclone separator using discrete phase modelling. THEORY: Cyclone Separators or simply cyclone are separation devices that use the principal of inertia to remove particulate matter from fluids. Cyclone separator is one many air pollution removers known as pre-cleaners since they generally remove…

OBJECTIVE:  To perform Rayleigh-Taylor Instability Simulation. THEORY: Rayleigh-Taylor Instability is a phenomenon that occurs at the interface of fluids of different densities where the fluid with lower density pushes the fluid with higher density due to the difference in density. It is a dynamic process where the…

OBJECTIVE: To perform CHT analysis on an Exhaust port of 4 in-line cylinder engine. THEORY: Conjugate Heat Transfer (CHT) refers to the coupling of conduction in solids with the convective or radiative heat transfer in the surrounding fluids. In simpler words CHT is combination of heat transfer in solids and fluids. CHT…

OBJECTIVE: External flow simulation over an Ahmed body. PROCEDURE: We initiate by importing the AHMED BODY CAD file into space claim which we opened in ANSYS workbench, Once the model loaded, we used the enclosure tool to create geometric enclosures over the body to capture the flow volume, to bring in more accuracy without…

OBJECTIVE: Simulate the flow over a cylinder  PART-I Simulate the flow with the steady and unsteady case and calculate the Strouhal Number for Re= 100.  PART-II Calculate the coefficient of drag and lift over a cylinder by setting the Reynolds number to 10,100,1000,10000 & 100000. (with steady solver)…

OBJECTIVE:  To set up steady-state simulations to compare the mixing effectiveness when hot inlet temperature is 360C & the Cold inlet is at 190C. Using the k-epsilon and k-omega SST model for the first case and based on our judgment we will use the more suitable model for further cases.  Case 1  Short…

OBJECTIVE:  Simulate an axi-symmetric flow by applying the wedge boundary condition. The flow is laminar and flows through a constant cross-section pipe at an inlet Reynold's number of 2100. THEORY:  `Deltap = (8(mu)LQ)/(piR^4)` Given parameters wedge angle less than 5 degrees Flow axi symmetrical Fluid…

OBJECTIVE: To simulate an incompressible-laminar-viscous flow through the backward facing step geometry using OpenFOAM. STEPS FOLLOWED: We first went to tutorial folder by using "tut" shortcurt command. then we used "ls" to list al the files in the folder. After that we used "cd incompressible" command to get into the…

OBJECTIVE: To simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle by both the conservation and non-conservation forms of the governing equations and sovle them using the MacCormack's technique. THEORY: The governing equations of continuity,momentum and energy in terms of non-dimensional…

AIM: Solve the 2D heat conduction equation by using Jacobi, Gauss-seidel and Successive over relaxation methods. GOVERNING EQUATIONS:  Conduction is process of heat transfer in solids and the general equation for same is, `(delT)/(delt) - alpha((del^2T)/(delx^2) + (del^2T)/(dely^2) + (del^2T)/(delz^2)) = 0` As for…

Create a detailed MATLAB model of an electric rickshaw (three-wheel passenger vehicle) as per details below:  Rear wheels driven by PM brushed type motor Assume efficiency points of motor controller and motor Make an excel sheet of all input and assumed data  Results: For any three standard driving cycles show…

For a 10-cell series lithium-ion battery model, simulate the thermal effects and compare life cycle performance at various temperatures, charge & discharge rates using MATLAB. A lithium-ion battery or Li-ion battery is a type of rechargeable battery composed of cells in which lithium ions move from the negative electrode…

Create a MATLAB model of electric car which uses a battery and a DC motor. Choose suitable blocks from Powertrain block set. Prepare a report about your model including following: Objectives:      System level configurations   Motor The motor converts electric energy into kinetic energy that moves the…

Search and list out the total weight of various types of aircrafts. MAXIMUM DESIGN TAXI WEIGHT (MDTW OR MTW) The maximum design taxi weight or maximum design ramp weight (MDRW) is the maximum certificated design weight for aircraft ground manoeuvres as limited by aircraft strength and airworthiness requirements. MAXIMUM…

Use ADVISOR tool and simulate the following    For EV_defaults_in file, if cargo mass is 500 kg with all other default conditions, can the vehicle travel for 45 km with FTP drive cycle? Conclude your observations.   In the above case, try changing the battery capacity and repeat the simulation.   Perform…

SIMULINK FINAL PROJECT REPORT   AIM :TO STUDY THE SYSTEM LEVEL SIMULATION OF ALL TERRAIN VEHICLE. OBJECTIVE : TO STUDY THE BAJA ATV MODEL WITH AND WITHOUT                                                                                  …

clear all close all clc disp('RANKINE CYCLE SIMULATOR') disp('1-2 is isentropic expansion') disp('2-3 is constant pressure heat rejection') disp('3-4 is isentropic compression') disp('4-1 is constant pressure heat addition') p1 = input('enter the pressure at the inlet of turbine = '); t1 = input('enter the temperature…

%Cp,H,S function function [Cp,H,S] = thermofunc(local_low_temp,local_mid_temp,local_high_temp,Lt,Ht) for i=1:local_high_temp-local_low_temp+1 R = 8.34; T=i+local_low_temp-1; if T<= local_mid_temp Cp(i) = R*(Lt(1)+(Lt(2)*T)+(Lt(3)*T^2)+(Lt(4)*T^3)+(Lt(5)*T^4)); H(i) = R*T*(Lt(1)+((Lt(2)*T)/2)+((Lt(3)*T^2)/3)+((Lt(4)*T^3)/4)+((Lt(5)*T^4)/5)+(Lt(6)/T));…