First of all we are going to look up for the calculation of fourth order approximation of various schemes and we are going to prove that our skewed schemes are fourth-order accurate.      Before that, skewed schemes are useful when compared to central difference, because the number of nodes in skewed schemes…

We have to solve for two dimensional heat conduction equation in this challenge.   First of all the two dimensional heat conduction equation is, `(del^2T)/(delx^2)+(del^2T)/(dely^2)=0` When we discritize the above equation by using central differencing scheme,we get the following   `(del^2T)/(delx^2)=(T_(i-1,j)-2*T_(i,j)+T_(i+1,j))/(Deltax^2)`…

Simulation of one dimensional Super-sonic nozzel flow simulation using Macromack method   Objective: In this challenge we are going to simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle. We will derive both the conservation and non-conservation forms of the governing equations and sovle them…

BlockMesh Drill down challenge Objective: To study icoFoam solver and to simulate the flow through a backward-facing step. Also to create different meshes and compare the results obtained from them. Given: Mesh specification Number of cells along the x direction (longer dimension) = 200 Number of cells along the y direction…

FVM Literature Review: Introduction: The finite volume method (FVM) is a method for representing and evaluating partial differential equation in the form of algebraic equations. In the finite volume method, volume integrals in a partial differential equation that contain a divergence term are converted to surface…

Simulation of Flow through a pipe in OpenFoam:   Objective :   To simulate the incompressible laminar flow through pipe using OpenFoam.   Things we need to do, Write a program in Matlab that can generate the computational mesh automatically for any wedge angle and grading schemes Hint: wedge angle should…

Symmetry vs wedge vs HP equation   Objective :    To write a matlab code for symmetry boundary conditions of flow through pipe. To obtain results at wedge angles of 10,25 and 45 degreesof pipe flow. Comparing results of wedge boundary conditions with symmetry boundary conditions. Description : Assumptions…

Channel flow simulation using CONVERGE CFD:   Aim: The main objective of this project was to simulate and study the velocity, pressure, mass flow rate, and total cell count for all 4 base mesh sizes of the Rectangular Channel using CONVERGE Studio and observe the difference between the contours and line plots generated…

Flow over a backward facing step using Converge Cfd:   Aim: The major objective of the project was to set up CFD simulation of the flow over a backward-facing step for 3 progressively refining mesh setting, using converge Studio and result visualization using ParaView. To generate and analyze plot and contours for…

Steady state simulation of flow over a throttle body   Aim: The main objective of this project is to set up the case to perform simulation of steady-state flow over a Throttle valve when it is fully open and post-processing the result using ParaView. Introduction: The report contains a detailed description of the…

Transient simulation of flow over a throttle body:     Aim: The major objective of this project was to perform a transient simulation for the flow of air over a throttle body when the throttle is moving at some angle in Converge Studio and post-process the results using ParaView. Introduction: The report contains…

Prandtl Meyer Shock problem:   Aim: The major objective of this project was to Simulate Prandtl Meyer Shock Problem Using Converge CFD & to study the Effect of the SGS parameter on shock location along with other useful data. 1. Simulate the SuperSonic and SubSonic flow through a duct which has a sharp…

Conjugate Heat Transfer Simulation     Aim: The major objective of this project was to Simulate an Aluminium cylindrical tube for the Conjugate Heat Transfer problem using Converge CFD and Post-processing the result using ParaView to study the change of result when the major parameter is changed like grid…

  Shock tube simulation project:   Aim: The major objective of this project was to set up Transient Simulation in a Shock Tube using Converge CFD. A shock tube that has a diaphragm in between and the tube is one side filled with high-pressure Nitrogen where the other side is filled with low-pressure Oxygen. Introduction…

Literature review RANS derivation and analysis Aim: The major Objective was to apply Reynolds decomposition to the Navier Strokes equations and come up with Reynold's Stress. Understand the term, Reynolds Stress, and study the difference between turbulent viscosity and molecular viscosity. Theory: Turbulence : Turbulence…

Mini project - Flow over an Airfoil   Aim The major objective of this simulation was to set a simulation over the NACA 2412 aerofoil with different angles of attack(AOA) using Converge CFD and estimating its coefficient of lift and drag.  Introduction: Airfoil is a structure that provides required Lift force…

Modeling and Simulation of flow around an Ahmed Body:   Aim: The major objective of this project was to model and set up the simulation of flow around an Ahmed Body using Converge CFD and Comparing the simulation result with the experimental data provided. Introduction: The Ahmed body is a generic car body (a simplified…

FSAE Car Project: Aim: The major objective of this project was to Setup Aerodynamics Simulation of a Formula Student Type race car using Converge CFD and Estimate the Drag and Lift force on different major components. Introduction: The project's aim is to Study the external fluid dynamics of racing cars. The study of aerodynamics…

Q1: Why there is a difference in the formula of variance for population and sample? Population variance refers to the value of variance that is calculated from population data, and sample variance is the variance calculated from sample data. Due to this value of denominator in the formula for variance in case of sample…

Basics of ML & AL : Q1) Calculate all 4 business moments using pen and paper for the below data set? Answer: Business moment-1 Business moment-2 Business moment-3   Business moment-4                         Q2)What is the significance of expected value when simple mean (Sum of all observations/number of observations) is…

Title: Steady-state simulations of Mixing Tee pipe with the help of AnsysFluent. 1. Introduction         Mixing Tee is used to perform effective mixing of two fluid, to achieve certain conditions of Temperature and velocity at the outlet of the pipe. For example Air conditioning of a room to attain suitable temperature…

Steady Vs Unsteady flow over a cylinder   Title: Simulation of flow over a cylinder with the help of AnsysFluent.   1.Introduction In this project, we are simulating the flow of fluid over a cylinder at different Reynold numbers with a steady and unsteady solver. Change in value of Reynold number would be…

Ahmed Body Challenge Title: Performing a Grid dependency test on an Ahmed body and compare the results. Introduction The aim of this project is to simulate the Ahmed body for the Grid dependency, hence to see the effect of mesh sizing on the result of velocity and pressure distribution around the Ahmed Body. Ahmed…

Exhaust Port Challenge Title: To perform Conjugate Heat Transfer (CHT) Analysis with Exhaust Port Simulation. Introduction  Conjugate heat transfer (CHT) analysis is generally used when there is temperature variation during heating or cooling in the material due to the interaction between solid and fluid phases. It is…

Rayleigh-Taylor Instability Analysis   Two fluids of different densities superposed over each other (or accelerated towards each other); the instability of the plane interface between the two fluids, when it occurs, is called the Rayleigh-Taylor instability. In the context of the Rayleigh-Taylor instability, there…

Conjugate Heat Transfer Analysis on a graphics card Introduction: A CHT (Conjugate Heat Transfer) analysis is useful where there are multiple modes of heat transfer in our computational domain, like conduction and convection. Having such a great number of applications for this type of simulation makes it important to be…

Cyclone Separator Challenge:   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…

CHALLENGE FOR GATE VALVE SIMULATION Gate Valve: A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. The gate faces can be…

Challenge on Combustion: Objective: Part I Perform a combustion simulation on the combustor model and plot the variation of the mass fraction of the different species’ in the simulation using line probes at different locations of the combustor as shown in Fig. You need to plot for CO2, H2O, CH4, N2, O2, NOx emissions…

WEEK 2 CHALLENGE ON VALVE:   AIM: For the given model, check for the geometrical errors and perform Topology cleanup accordingly. Set three different target lengths as three different cases and mesh the model.  Target length = 1mm, 3 mm and 5 mm (i.e. 3 cases) Element type = Tria Apply any one target length from…

Week 3 Challenge: CFD meshing on Turbocharger   AIM:   For the given model, check for the geometrical errors to make appropriate volumes. Create and assign PIDs and, perform surface mesh with the given target lengths as per PIDs. Blade stage-1 = 1 mm Blade stage-2 = 1 mm Impeller = 2 mm Shaft rotor = 1 mm Turbo…

Week 4 Challenge: CFD Meshing for BMW car   AIM:   For the given model, check and solve all geometrical errors on half portion and Assign appropriate PIDs. Perform meshing with the given Target length and element Quality criteria. After meshing the half model, Do symmetry to the other side. Target lengths for…

Week 5 Challenge: Surface wrap on Automotive Assembly   AIM:   For the given models, check for the geometrical errors and delete surfaces that are unwanted for the Surface wrap as shown in the videos. After clearing geometry, Merge all 3 models and perform surface wrap. Target length for Wrap = 3 mm   GIVEN…

Project 1: CFD Meshing for Tesla Cyber Truck   AIM: For the given model, check and solve all geometrical errors and Assign appropriate PIDs. Perform meshing with the suitable Target length and element Quality criteria.   GIVEN MODEL:                      …

Boeing-747 _ Final_Project   Aim : To model a Boeing-747 aircraft using Solid works. Design Methodology : Step 1: To model the aircraft we make use of the blueprints containing Front view, Side view and Top view. These are oritented in the 3 basic planes using the appropiate dimensions from the…

Convergent Divergent Nozzle:   Consider the converging-diverging nozzle below with the dimensions. The throat radius of the nozzle is 0.1mm.   For the following boundary conditions,    At Inlet, Pressure = 1atm and Temperature = 300K. The outlet pressure= 0.027 atm. In the operating conditions, consider…

Pitot tube : A pitot tube, also known as a pitot probe, is a flow measurement device used to measure fluid flow velocity. The pitot tube was invented by the French engineer Henri Pitot in the early 18th century and was modified to its modern form in the mid-19th century by French scientist Henry Darcy. Pitot Static Tubes…

Week 5 - Turbulence modelling challenge   Given: In this challenge, you are required to do a literature review of various turbulence models explained in the Turbulence modeling video (Week-5) and explain why DNS isn’t feasible according to Kolmogorov's scale. For the below geometry performs a 3D simulation and…

Creating a domain for compressible and incompressible flow over a NACA 0012 airfoil   (i) We need to import the airfoil data from the below-mentioned URL, http://www.basiliscus.com/ProaSections/AppendixD/TableD1.txt (ii) After downloading the data, we want to edit manually the 3 dimension co-ordinates and…

Week 8- Moving zones approach in Fluent   1)What are the approaches by which you would model moving zones? To model moving zones, two approaches are used, Moving Reference Frame method, Moving Mesh Approach.   2)Which approach would you use to model unsteady phenomena? We would use the moving mesh method to model…

Week 9- Unsteady moving zones Approach   Simulate the motion of blades in a generic turbomachinery component using an unsteady approach. Assume blade rotation at 300rpm Choose an appropriate time step for the simulation and generate an animation file for the rotation. Solution Import the mesh file in the fluent as…

Week 11- Broadband Noise modeling over Ahmed body   In this challenge, you are required to do the following. Describe Ahmed's body and its importance. Setup the domain and setup assuming body is traveling at 110 mph Run the setup till convergence and plot for static pressure and coefficient of drag and lift to check…

Week 6 Challenge:    

Project 1   Shear Cleats: Shear Cleats are basically brackets, they come in all shapes and sizes mostly L-angled brackets attaching butt-straps to main spars and ribs and also used for attaching main structural members to its secondary connecting members.   Procedure: In this exercise, we will be modeling a 3D…

AIM: In this assignment, we will be given a V-block assembly. we have to recreate the same images in Catia using the sketching tools covered in this week’s tutorials.   GIVEN:   MODEL 1:           Used commands: constraints trim line circle Axis Circle plane etc...   After…

AIM: In this assignment, we will be given a motor blower assembly. we have to recreate the same images in Catia using the sketching tools covered in this week’s tutorials.   GIVEN:   MODEL 1:             Used commands: constraints trim line circle Axis Circle plane etc...…

AIM: In this assignment, we will be given a stock bracket assembly. we have to recreate the same images in Catia using the sketching tools covered in this week’s tutorials.   GIVEN:   MODEL 1:                 Used commands: constraints trim line circle Axis Circle…

AIM: In this assignment, we will be given a radial engine assembly. we have to recreate the same images in Catia using the sketching tools covered in this week’s tutorials.   GIVEN:   MODEL 1:           Used commands: constraints trim line circle Axis Circle plane etc...  …