A Comparison of DES Methods for the DrivAer Generic Realistic Car Model on a Wall Resolved and a Wall Function Mesh
2022-01-1080
03/29/2022
- Content
- The DrivAer realistic generic car model is now established as one of the benchmark geometries to assess the aerodynamic flow field characteristics associated with passenger vehicles. Since its introduction in 2012, the database of experimental studies has grown and provides excellent validation opportunities for analytical methods. This paper compares Computational Fluid Dynamics (CFD) simulations for integral forces, surface pressure distribution and velocity flow fields for the DrivAer model in the notchback configuration. Transient CFD data are obtained by employing hybrid Reynolds Averaged Navier-Stokes (RANS) and Large Eddy Simulation methods (Detached Eddy Simulation - DES) using the finite volume solvers Simcenter Star-CCM+ and the openFOAM based flow solver IconCFD. Computational results are calculated using Wall Resolved Meshes (WRM), where y+ <1, and Wall Function Meshes (WFM), where 30
- Citation
- Lewington, N., Doroudian, A., James, T., and Hupertz, B., "A Comparison of DES Methods for the DrivAer Generic Realistic Car Model on a Wall Resolved and a Wall Function Mesh," SAE Technical Paper 2022-01-1080, 2022, .