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.
- Duration
- 1 month
- Fee
- ₹30,000
- For
- B.E Mech/Aero/Auto/Production
What will you do in this project?
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,
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.The project is an advanced level project
- This project is useful for undergraduate, graduate or post graduate students looking to understand how to setup an external aerodynamics simulation in StarCCM.
Pre-requisites
- Must be comfortable with setting up a case in StarCCM+
- Need basic background in CFD and Aerodynamics
- Need basic knowledge of MS Excel or a scripting language
Learning Outcome
- You will learn StarCCM+
- Understand the importance of a good mesh and the y+ value
- Difference between turbulence models and how they predict the results
