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Embedded Large Eddy Simulation of Flow around the Ahmed Body
ISSN: 1946-391X, e-ISSN: 1946-3928
Published April 16, 2012 by SAE International in United States
Citation: Caridi, D., Cokljat, D., Schuetze, J., and Lechner, R., "Embedded Large Eddy Simulation of Flow around the Ahmed Body," SAE Int. J. Commer. Veh. 5(1):208-214, 2012, https://doi.org/10.4271/2012-01-0587.
Airflow over the Ahmed body is simulated by means of the Embedded LES technique. This is a zonal approach which allows the LES turbulence model to be used in a sub-domain while the rest of the domain is solved using a RANS turbulence model, i.e., the kω-SST model. This allows the LES zone to be restricted to the rear end of the vehicle where the unsteadiness of the flow must be accurately predicted. A comparison with full RANS modeling and experiments is reported.