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Large-Eddy Simulation of the Flow Around a Ground Vehicle Body

Sinisa Krajnovic (Institutionen för termo- och fluiddynamik) ; Lars Davidson (Institutionen för termo- och fluiddynamik)
SAE Paper 2001-01-0702 (2001)
[Artikel, refereegranskad vetenskaplig]

Large Eddy Simulation of the the flow around bus-like ground vehicle body is presented. Both the time-averaged and instantaneous aspects of this flow are studied. Time-averaged velocity profiles are computed and compared with the experiments by Duell and George (SAE Paper 1999-01-0812) and show good agreement. The separation length and the base pressure coefficient are presented. The predicted pumping process in the near wake occurs with a Strouhal number St=0.073, compared with St=0.069 in the experiment. Unsteady results at two points are presented and compared with the experiments. The coherent structures are studied and show good agreement with the experiments.

Nyckelord: Vehicle, Bus, Large eddy simulation, LES

Denna post skapades 2006-08-25. Senast ändrad 2014-09-29.
CPL Pubid: 10459


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Institutioner (Chalmers)

Institutionen för termo- och fluiddynamik (1989-2004)



Chalmers infrastruktur

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Large-Eddy Simulation for Computing the Flow Around Vehicles