The paper addresses the Large-Eddy Simulation(LES)of the turbulent wake of the Ahmed car model.To this end we use a Fourier-Chebyshev multi-domain solver and the LES capability is implemented through the use of the Sp...The paper addresses the Large-Eddy Simulation(LES)of the turbulent wake of the Ahmed car model.To this end we use a Fourier-Chebyshev multi-domain solver and the LES capability is implemented through the use of the Spectral Vanishing Viscosity(SVV)method,completed with a near-wall correction.A“pseudo-penalization”technique is used to model the bluff body.Comparisons of the present SVV-LES results with the experiments and also with a more classical Finite Volume LES are provided.展开更多
基金The computations were done on the NEC-SX8 Computer of the IDRIS Computational Center(project 064055)on the parallel computer of the SIGAMM Computational center at the OCA(Nice)The work was supported by the CNRS in the frame of the DFG-CNRS program“LES of complex flows”.
文摘The paper addresses the Large-Eddy Simulation(LES)of the turbulent wake of the Ahmed car model.To this end we use a Fourier-Chebyshev multi-domain solver and the LES capability is implemented through the use of the Spectral Vanishing Viscosity(SVV)method,completed with a near-wall correction.A“pseudo-penalization”technique is used to model the bluff body.Comparisons of the present SVV-LES results with the experiments and also with a more classical Finite Volume LES are provided.
