Week 5 - Rayleigh Taylor Instability

Aim - 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.   Objective - We can decide the target lengths for the different…

AIM - For the given models, check for the geometrical errors and delete surfaces which are unwanted for Surface wrap. After clearing geometry, merge all 3 models and perform surface wrap. Target length for Wrap = 3 mm   PROCEDURE - Open the engine model first   We can directly delete the surface that are not…

AIM: This project aims to do a geometric cleanup and create an enclosure around the BMW M6 car and do surface meshing on both.   OBJECTIVES:   Cut the model in half as its symmetric in order to reduce our work and time required for cleanup and meshing. Check for the geometrical errors. Create and assign PIDs.…

AIM: This project aims to do a volumetric mesh on a turbo charger for CFD analysis.   OBJECTIVES: Check for the geometrical errors in order to make appropriate volumes. Create and assign PIDs. Perform surface mesh with the given target lengths as per PIDs. Perform Volumetric mesh for the required volumes. Element…

AIM: This project aims to generate a surface mesh on a pressure valve using three different mesh sizes and find out the optimal mesh size.   OBJECTIVES: Check for the geometrical errors and perform Topology cleanup. Set three different target lengths as three different cases and mesh the model. Target length = 1mm,…

Aim – To simulate the combustion of natural gas to calculate the mass fraction and by adding the water in the fuel to observe the effects to avoid harmful effects on environment and human. Objective – Perform a combustion simulation on the combustor model and plot the variation of the mass fraction of the different…

AIM - For this challenge, we’ll have to perform a parametric study on the gate valve simulation by setting the opening from 10 % to 80%.    OBJECTIVE - Obtain the mass flow rates at the outlet for each design point. Calculate the flow coefficient and flow factor for each opening and plot…

AIM - To perform analysis on cyclone separator and calculate the separation efficiency and pressure drop.   OBJECTIVE - To 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 the particle…

PROBLEM STATEMENT – Perform a steady-state conjugate heat transfer analysis on a model of a graphics card. You can use appropriate materials of your choice for the simulation. Make sure to properly define the correct solid and fluid zones. Refer the video for further clarification and the model is provided below…

Objective - Some practical CFD models that have been based on the mathematical analysis of Rayleigh Taylor waves Explain how these mathematical models have been adapted for CFD calculations. Perform the Rayleigh Taylor instability simulation for 2 different mesh sizes with the base mesh being 0.5 mm. Compare the results…

AIM – Steady state conjugate heat transfer (CHT) analysis on exhaust port.   OBJECTIVE – Give a brief description of why and where a CHT analysis is used. Maintain the y+ value according to the turbulence model and justify the results. Calculate the wall/surface heat transfer coefficient on the internal…

OBJECTIVE – To perform external flow simulation over Ahmed Body. To perform the grid independence test and to provide the values of coefficient of lift and drag.   THEORY – Ahmed Body - The Ahmed body is a generic car body (a simplified vehicle model). The airflow around the Ahmed body captures the essential…

Simulate the flow over a cylinder and explain the phenomenon of Karman vortex street.    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…

OBJECTIVE – To simulate the flow of air through mixing tee and understand the effect of length of pipe and momentum ratio of velocity for mixing of air by using two different types of pipes i.e., short pipe and long pipe.   THEORY – In industrial process engineering, mixing is a unit operation that involves…

OBJECTIVE – To simulate incompressible laminar viscous flow through backward-facing step geometry. PROBLEM STATEMENT – Perform 2D transient incompressible laminar viscous flow through backward-facing step geometry using a suitable solver available in OpenFoam for the following cases. Case 1 - Simulate the flow…

OBJECTIVE – Finite volume method (FVM) literature review.   Finite Volume Method (FVM) – The Finite volume method (FVM) is a method for representing and evaluating partial differential equations in form of algebraic equations. In this method, volume integrates into a partial differential equation that…

OBJECTIVE – Simulation of 1D Super-sonic nozzle flow simulation using Macormack method.   THEORY – In this study we’re going to simulate flow inside a convergent-divergent nozzle as shown below. The inlet of the nozzle is connected to a reservoir, the cross section of the reservoir is very large…

OBJECTIVE – To solve 2D heat conduction equation for both steady state and transient state using implicit approach for the former one and both implicit and explicit approach for the latter one. PROBLEM STATEMENT – A square computational domain. Number of nodes in x direction (nx) = Number of nodes in y direction(ny)…

OBJECTIVE – To drive and write a MATLAB program for 4th order approximation of 2nd order derivative of the function f(x) = exp(x)*cos(x) by following methods Central difference method Right-sided difference method Left-sided difference method   THEORY - In order to solve any PDE, we first need to discretise…