# Modeling and Simulation of flow around an Ahmed Body

In this project, you will be creating the geometry and setting up the case in Converge Studio. And then simulating to analyze the drag and the down force experienced by the Ahmed body. You will also be performing the validation study.

• Duration : 1 Month
• Domain : MECHANICAL ENGINEERING, AUTOMOTIVE ENGINEERING, MATERIALS ENGINEERING, AEROSPACE ENGINEERING, AERONAUTICAL ENGINEERING
• Benefits : In this project, you will be creating the geometry and setting up the case in Converge Studio. And then simulating to analyze the drag and the down force experienced by the Ahmed body. You will also be performing the validation study.
• Price : 30000

### What will you do in this project?

In this project, you will work on the Ahmed body with a slant angle of 35° and run the simulation. You will do the following in this project,

• Create a geometry and the virtual wind tunnel
• Calculate the 1st cell height near the wall using Y+ calculator
• Setup and run the case using Converge CFD software
• Line plotting and visualizing the results in PARAVIEW.
• Analyzing the drag and the down force experienced by an Ahmed body.

• Understanding the concept of Y+ and Turbulence modeling.
• Learning different techniques to optimize the cell count.
• Running the simulation on multiple cores in command line window (CYGWIN).
• Creating meaningful plots using MS - EXCEL or MATLAB coding

#### Project Highlights

##### The project is an advanced level project
• This project is great for undergraduate students (3rd & 4th year), M.Tech or MS students.
• If you are a working professional, this project will be helpful to learn CFD for Aerodynamics applications.
##### Pre-requisites
• Must be comfortable with CONVERGE.
• Need a basic background in CFD and Aerodynamics.
• Need a basic knowledge on how to use command line window.
• Need a basic knowledge of MS Excel.
##### Work with Multiple Tools
• Work on Converge CFD software to setup the case.
• Use command line window (CYGWIN) to run simulations.
• Post process the results using PARAVIEW.
• Use of MS - WORD or GOOGLE DOC to create a report.
• Use MS - EXCEL or MATLAB coding to create meaningful plots,

## Modeling and Simulation of flow around an Ahmed Body

In this project, you will be creating a geometry in any of the CAD packages you are comfortable with and setting up the case in Converge Studio by providing appropriate boundary conditions. Also, you will be learning the theory behind how to create a virtual wind tunnel and will be creating it. Through this project, you will be getting a very good insight on the concepts of turbulence modelling, Y+, calculating 1st cell height near the wall and also understand how to make use of Y+ calculator to calculate base grid size. You will get exposed to very strong features of fixed embedding, volume refinement, boundary layer generation which are really important as it gives user, a very good control on the cell count and cell count can easily be optimized using these features.

• Understanding the importance of boundary layer separation and it's effects.
• Looking to capture for the wake region and stagnation zone.
• Plotting velocity profiles at different locations in PARAVIEW.
• Pen & paper calculations to calculate drag and lift co-efficient.
• Normalizing the data using MS - EXCEL or MATLAB coding and performing validation study.

### FAQ

#### 1How is this project going to help me?

SKILL-LYNC projects are mapped closely with what industry expects. When you work on a SKILL-LYNC project and publish it in your profile, recruiters are automatically notified about your profile.  Your project submissions are graded so that students can get critical feedback on your work

You bet!

#### 3What are the pre-requisites for this project?

• A few premium projects might require a prior understanding of fundamental concepts
• In such a case, you will be given access to appropriate learning materials to first learn those concepts before jumping to the project

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