One of the world's largest unsteady turbulence simulations of flow around a formula car was conducted using Large Eddy Simulation (LES) on the Earth Simulator in Japan. The main objective of our study is to investigate the validity of LES for the assessment of vehicle aerodynamics, as an alternative to a conventional wind tunnel measurement or the Reynolds Averaged Navier-Stokes (RANS) simulation. The aerodynamic forces estimated by LES show good agreement with the wind tunnel data (within several percent!) and various unsteady flow features around the car is visualized, which clearly indicate the effectiveness of large-scale LES in the very near future for the computation of flow around vehicles with complex configurations.
Large Eddy Simulation of Unsteady Flow Around a Formula Car on Earth Simulator
Sae Technical Papers
SAE World Congress & Exhibition ; 2007
2007-04-16
Conference paper
English
Large Eddy Simulation of unsteady flow around a formula car on Earth Simulator
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