Week 4 - CHT Analysis on Exhaust port

AIM: To check for geometrical errors and perform Topology cleanup accordingly. To perform surface wrap on the given automotive assembly. Make a volumetric mesh in the given geometry, then make a surface mesh so we can proceed with the volumetric mesh, and finally select the required volumes and create a volumetric mesh…

AIM: To create a MATLAB programme for 4th order approximation of a second-order derivative using the following methods: 1. Central difference2. Skewed right-sided difference3. Skewed left-sided  OBJECTIVE: Using the above-mentioned order of approximations, calculate the second-order derivative of the function f(x)…

AIM: To run an aerodynamic flow simulation over an FSAE car in two phases. The first step is to configure a coarse simulation. This should be done in two cases for the second phase: one with the car travelling through many turns and another with the vehicle travelling on a straight road. OBJECTIVE: Phase 1: Importing the…

AIM: To use Converge CFD to model and simulate flow around an Ahmed Body and compare the simulation results to experimental data provided. OBJECTIVE: Using any CAD package, create the CAD model. Setup a coarse CFD simulation Set up a virtual wind tunnel. Use the appropriate boundary conditions and solver settings. Display…

AIM: To run steady state simulations on a NACA 2412 airfoil at different angles of attack. Calculate the drag and lift coefficients for various AOA using the time averaging method to find the optimum pain and lift force. Create the necessary contours and graphs to aid understanding. THEORY: 1. ANGLE OF ATTACK: The angle…

Question - 1. What is the Compression ratio for the engine? Compression ratio = Total Volume / Clearance Volume = (Vs+Vc)/Vc where, Vs - Swept Volume, Vc - Clearance Volume Values are imported from the converged studio's Engine calculation simulation.   Stroke Volume:  Clearance Volume:    Using…

AIM: To simulate the combustion process in a diesel engine using two different piston configurations, omega and open w. It is intended to compare the engine's performance and emission characteristics with these two configurations. THEORY: The diesel engine generates power by burning fuel that is injected or sprayed into…

AIM:  To run and simulate the Full Hydro simulation in an ICE engine using the supplied inputs We intend to obtain vital engine information by post-processing the results, specifically compression ratio, combustion efficiency, power, and torque. INTRODUCTION: The IC Engine was subjected to a No Hydro simulation in…

AIM: To simulate no hydro simulation for an ICE engine. THEORY:  An internal combustion engine (ICE) is a type of heat engine in which fuel is burned with an oxidizer (usually air) in a combustion chamber that is part of the working fluid flow circuit. The expansion of the high-temperature and high-pressure gases…

AIM: To derive the Reynolds Averaged Navir Stokes(RANS) Equations. OBJECTIVE: To find the Reynolds stress expressions, apply Reynolds decomposition to the Navier-Stokes equations. Understanding the distinction between turbulent viscosity and molecular velocity is also important. LITERATURE REVIEW: Fluid flow is classified…

AIM: To simulate the flow across a shock tube. We intend to study the pressure and temperature distribution over time. Also, we intend to study the variation of cell count over time. THEORY: The shock tube is a device that simulates and directs blast waves at a sensor or model to simulate actual explosions and their effects…

AIM:  To simulate a Conjugate Heat transfer simulation across a pipe. The impacts of 3 grid sizes and super cycling on the results will be examined. THEORY: Meaning of Conjugate Heat Transfer: The heat transfer between a body and the fluid flowing past it is governed by Fourier's equation, whereas the flow in the…

AIM:  To simulate a Prandtl Meyer wave. The location and nature of the shock formed are examined. Also, the impacts of adaptive Mesh refinement are studied. THEORY:   SHOCK WAVES: Shock waves are essentially non-linear waves that propagate at supersonic speeds. They can be visualized as a very sharp and thin…

AIM:  The project aims to simulate the flow through a throttle body using transient simulation. The objective is to understand the development of the flow with the aid of different plots. THEORY: The throttle valve arrangement which is the subject of this analysis is frequently used in automobiles to regulate the…

AIM:  The aim of the project is to simulate the flow through a throttle body. The objective is to understand the development of the flow with the aid of different plots. THEORY: The throttle valve arrangement which is the subject of this analysis is frequently used in automobiles to regulate the air-fuel mixture in…

AIM: To simulate the flow over the Backward facing step using CONVERGE CFD. OBJECTIVE: Able to simulate the flow over Backward facing step for three different base mesh sizes, different base mesh sizes are,   dx = 2e-4m,              dy = 2e-4m,       dz…

AIM: To perform a channel flow simulation using Converge and post-process the result in Para view. OBJECTIVE: To run 3 simulations and compare the results between all the 3 simulations. The impact of three different mesh sizes will be studied Understand flow development with the aid of plots for velocity, pressure…

AIM: Analysing a missile with high mach number combined with engineering data added to the missile and doing structural analysis. OBJECTIVE: (CASE-1) To create the geometry and meshing domain of a missile and analyse the shock waves encountered for Mach No. 6. (CASE-2) To do structural analysis by adding material to the…

AIM: To calculate the most efficient slot-fuel injector and cavity-flame holder for a scramjet in ANSYS Fluent. THEORY: A scramjet engine is an improvement over the traditional ramjet engine as it efficiently operates at hypersonic speeds and allows supersonic combustion. Thus it is known as Supersonic Combustion Ramjet…

AIM: Analysing a missile with high mach number combined with engineering data added to the missile and doing structural analysis. OBJECTIVE: (CASE-1) To create the geometry and meshing domain of a missile and analyse the shock waves encountered for Mach No. 6. (CASE-2) To do structural analysis by adding material to the…

AIM:  To perform a steady-state external flow simulation over an Ahmed body model. Use of Broadband model to capture the acoustic effects produced due to pressure difference at the surface of the body. Post-process the results and justify the solution derived. OBJECTIVE: To describe Ahmed's body and its importance.…

AIM: To simulate the motion of blades in a generic turbomachinery component using an unsteady approach. OBJECTIVE: Assume blade rotation at 300rpm Choose an appropriate time step for the simulation and generate an animation file for the rotation. SETUP & SOLUTION: Import the mesh file in the fluent as shown below,…

AIM: To simulate rotary motion for the given geometry and to study the moving zones approach in Fluent. THEORY:  1:  Introduction to moving zone: Two types of motion are involved in the fluid flow problem Rectilinear Rotary To model rotary motion, two approaches are used Moving Reference Frame (MRF) Moving…

AIM: To create a domain for flow analysis. To set up a simulation for subsonic and supersonic regimes at 5, 10, and 15 angles of attack. OBJECTIVE: To perform flow analysis over a NACA0012 airfoil for subsonic and supersonic flow regimes, and also perform the simulations for 3 angles of attacks 5, 10 and 15. Calculate…

AIM: To create a domain suitable for the helicopter fuselage geometry using ICEM CFD.  OBJECTIVE: Using ICEM CFD, The domain size is mentioned within the video i.e. Element size around the domain Prism element size. SETUP & SOLUTION: Because half domains are symmetrical, they will be created. The symmetry…

AIM: To explain turbulence modelling and run a simulation for the Golf ball. OBJECTIVE: Turbulence modelling. To perform a 3D simulation and explain the recirculation region using velocity vectors. Visualize the wake region. THEORY: Turbulence is unsteady, irregular fluid motion in which transported quantities…

AIM: To perform simulation on the pitot tube using Ansys Fluent. OBJECTIVE: To do a literature review of the pitot-static tubes. Also, establish a relationship between Total (stagnation) pressure and static pressure To calculate the total and static pressures and find the error in percentage for velocity. Velocity(m/s)…

AIM: To simulate a flow through a converging-diverging nozzle using ANSYS Fluent. OBJECTIVE: At Inlet, Pressure = 1atm and Temperature = 300K. The outlet pressure= 0.027 atm. In the operating conditions, consider the reference pressure to be zero. Plot: The pressure, velocity and temperature variations across…

AIM: To perform volumetric (CFD Meshing) on the given Tesla Cyber Truck geometry. OBJECTIVE: To open the given geometry in ANSA and to clean up the geometry appropriately. To carry out triangular meshing on the surface of geometry with different target lengths. To create a wind tunnel with the appropriate geometry and…

AIM: To perform surface wrap on the given automotive assembly. OBJECTIVE: To perform geometrical cleanup of given assemblies separately To merge all the components and to perform surface wrap of the same. PROCEDURE: Open the geometry in the ANSA software. Clean up the surface of geometry by deleting unwanted…

AIM: To perform volumetric (CFD Meshing) on the given BMW car geometry. OBJECTIVE: To open the given car geometry in ANSA and to clean up the geometry appropriately. To carry out triangular meshing on the surface of geometry with different target lengths as mentioned in the question, To create a wind tunnel with the appropriate…

AIM:  Make a volumetric mesh in the turbocharger's given geometry by first cleaning the geometry and removing any flaws, then making a surface mesh so we can proceed with the volumetric mesh, and finally selecting the required volumes and creating a volumetric mesh in those volumes. OBJECTIVE: For the given model,…

AIM: To check for the geometrical errors and perform Topology cleanup accordingly. Set three different target lengths for different cases and mesh the model using Ansa. OBJECTIVE: For the given model, check for the geometrical errors and perform Topology cleanup accordingly. Set three different target lengths as three…

AIM: To set a target length and mesh the cylindrical model using ANSA. OBJECTIVE: To mesh the given cylinder model by using element size as 3 units by using ANSA. INTRODUCTION: ANSA is a computer-aided engineering tool for Finite Element Analysis and CFD analysis widely used in the automotive industry. It is developed…

#CFD AIM: To perform a Parametric study of a gate valve. OBJECTIVE: To Perform the parametric study on the gate valve by simulating the gate valve opening ranging from 10 to 80 mm. To obtain the mass flow for each design point. Calculate the flow factor and flow coefficient for each design point.    INTRODUCTION:…

#CFD #ANSYSFLUENT  Topic: A Parametric study and Computational assessment of the MQ-1 Predator (UAV) Aircraft using Ansys Fluent. AIM: To study and simulate MQ-1 Predator using Ansys. OBJECTIVE: To describe MQ-1 Predator and its importance. simulate three velocities from 100 m/sec to 300 m/sec with the default…

Aim:  Write the code required cubic and linear polynomials to fit the Cp (Specific Heat) data. Objective:  To write the code to fit a linear and cubic polynomial for the Cp data. Plot the linear and cubic fit curves along with the raw data points. To write a code to show the splitwise method To explain the parameters…

Aim: To write a code that can solve an otto cycle and make plots for it. Objective: The code should create a PV diagram. Finding the thermal efficiency of the engine. Introduction: The system that is performing an ideal Otto cycle goes through a series of four internally reversible processes: two isentropic (reversible…

Aim: To write a Matlab program to calculate drag force against a cyclist. Objective: 1. Write a program to plot Velocity vs Drag force. 2. Write a program to plot Drag Co-efficient vs Drag force. FACTORS ENTAILED: Velocity: It is defined as the displacement of the object in unit time. Drag coefficient: The…

Aim: To perform simulation of fluid sloshing effect inside a Gearbox. INTRODUCTION: Gearbox: A gearbox is a mechanical device used to increase the output torque or change the speed (RPM) of the motor. The motor Shaft is connected to one end of the gearbox. The internal configuration of the gearbox gears provides an…

Aim: Combustion Simulation of Natural gas inside a Burner using ANSYS FLUENT. Objective: Part 1 1) Perform a combustion simulation and plot the variation of mass fraction of different species in the simulation using a line probe at different locations. 2) Set up a NOx and soot model to observe NOx emissions and soot…

AIM: To simulate the flow through a cyclone separator and show the results for the different particle sizes and different velocities. Objective: Write a few words about any four empirical models used to calculate the cyclone separator efficiency.  To perform an analysis on a given cyclone separator model by varying…

Aim: An external flow simulation over an Ahmed body. Objective: To describe Ahmed's body and its importance. To explain the reason for the negative pressure in the wake region.  To explain the significance of the point of separation. To run the simulation for the velocity of 25 m/sec with the default air properties…

Aim: To perform a steady-state conjugate heat transfer analysis on a model of a graphics card.  Objective: To simulate the velocity by varying from 1m/sec to 5m/sec for at least 3 velocities and to discuss the results. To find out the maximum temperature and heat transfer coefficient attained by the processor. To…

Aim:  To analyse the Rayleigh Taylor waves. Objective: To Perform the Rayleigh Taylor instability simulation for air and water with 2 different mesh sizes with mesh size 0.5 mm and 0.1mm and compare the results by showing the animations. We will observe the differences in the animation and explain the effect of mesh…

Aim: To conduct CHT analysis on exhaust port in ANSYS Fluent. Objective: A brief description of why and where a CHT analysis is used. A simulation of both fluid flow and also heat transfer to the solid i.e., CHT Analysis on an Exhaust port To calculate the wall heat transfer coefficient on the internal solid surface &…

Aim: To simulate the flow over a cylinder and explain the phenomenon of Karman vortex street. Objective: CASE-I: To Simulate the flow with the steady and unsteady case and calculate the Strouhal Number for Re= 100.  CASE-II: Calculate the coefficient of drag and lift over a cylinder by setting the Reynolds number…

Aim: To set up steady-state simulations to compare the mixing effectiveness when the hot inlet temperature is 36 C, and the cold inlet is 19 C. To compare the k-epsilon and k-omega SST models for the first case to get proper judgment about each method. Simulate each case for the given velocity and momentum ratio. Compare…

Aim: To understand the Rankine Cycle and simulate it using MATLAB. Objective: To Simulate a Rankine cycle using Matlab. Extracting Steam and water properties from Xstram file. To calculate the state variables at each point  Calculating every cycle's state point based on user inputs. To plot the T-S and H-S graphs.…

Aim: To write a code in Matlab to parse the NASA thermodynamic data file and then calculate the thermodynamic properties of various gas species. Objective:  To write a function that extracts the 14 coefficients and calculates the enthalpy, entropy, and specific heats for all the species in the NASA thermodynamic…

Aim: To write code in MATLAB to optimize the stalagmite function and find the global maxima of the function. Objective:  Explanation of the concept of a genetic algorithm (ga), Explanation of syntax for ga in MATLAB. FACTORS ENTAILED: Genetic algorithm: A genetic algorithm (or GA) is a search…

Aim: Solving a simple pendulum's second order ordinary differential equation and animating the damping effect. Objective:  To change an ordinary differential equation of second order into an equation of first order. Using the built-in MATLAB function for solving ordinary differential equations to create the function.…

Aim: To write a program using Matlab to simulate the forward kinematics of a 2R Robotic Arm. Objective: Create a program to simulate the forward kinematics of a 2R robotic arm. To create a motion picture or animation using the program's plots. Theory: In this project, we are going to deal with the linkage known as…