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Flow around an Ahmed Body using StarCCM+

This project deals with simulating the flow around an Ahmed Body, which is a prototypical car model. In order to perform this simulation, a computational domain will be defined in the form of a virtual wind tunnel. The simulation will be run for 25 and 35° slant angles and the flow patterns will be studied for both cases. Multiple cases for various slant angles can be run to show how the separation at the rear takes place and how the wake is affected, ultimately affecting the drag produced by the body. Finally, the results will be compared with the experimental results to get an idea of which solution and turbulence models to use and fine tune the setup to provide the best results.

  • Mechanical Engineering
  • Automotive Engineering
  • Materials Engineering
  • Aerospace Engineering
  • Aeronautical Engineering

duration
Duration :

1 month

projectfees
Project Fees :

INR 30,000

Benefits of this Project

This project deals with simulating the flow around an Ahmed Body, which is a prototypical car model. In order to perform this simulation, a computational domain will be defined in the form of a virtual wind tunnel. The simulation will be run for 25 and 35° slant angles and the flow patterns will be studied for both cases. Multiple cases for various slant angles can be run to show how the separation at the rear takes place and how the wake is affected, ultimately affecting the drag produced by the body. Finally, the results will be compared with the experimental results to get an idea of which solution and turbulence models to use and fine tune the setup to provide the best results.

What will you do in this project?

Step 1 - Ahmed body and wind tunnel creation in StarCCM+.

Step 2 - Meshing with wake refinement and prism layer generation.

Step 3 - Visualising the results

Step 4 - Post processing

Step 5 - Creating probes to obtain plots at various locations

    In this project, you will work on a Ahmed body with slant angles of 25° and 35° and run the simulation. In this project you will setup and run the case in StarCCM+ taking into consideration various meshing and physics parameters to obtain the solution as obtained in the experiments. This will be done in the following steps,

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    Project Highlights

    The project is an advanced level project

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    Flow around an Ahmed Body using StarCCM+

    This project deals with simulating the flow around an Ahmed Body, which is a prototypical car model.  In order to perform this simulation, a computational domain will be defined in the form of a virtual wind tunnel. The simulation will be run for 25 and 35° slant angles and the flow patterns will be studied for both cases. Multiple cases for various slant angles can be run to show how the separation at the rear takes place and how the wake is affected, ultimately affecting the drag produced by the body. Finally, the results will be compared with the experimental results to get an idea of which solution and turbulence models to use and fine tune the setup to provide the best results. 

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