Large eddy simulations (LES) were made of flows around a generic ground vehicle with sharp edges at the rear end (an Ahmed body with a 25 angle of the rear slanted surface). Separation of the flow at the rear results in large regions with recirculating flow. As the separation is determined by the geometry, the Reynolds number effects are minimized. Resolution requirements of this recirculating flow are smaller than those in LES of wall attached flows. These two consequences of the geometry of the body are used to predict the experimental flow at relatively high Reynolds number. Recommendations are presented for the preparation and realization of LES for vehicle flows. Comparison of the LES results with the experimental data shows good agreement.
Flow around a simplified car, part 1: large eddy simulation
Umströmung eines vereinfachten Karosseriemodells, Teil 1: Großwirbelsimulation
Transactions of the ASME, Series I. Journal of Fluids Engineering ; 127 , 5 ; 907-918
2005
12 Seiten, 11 Bilder, 2 Tabellen, 16 Quellen
Aufsatz (Zeitschrift)
Englisch
Large-Eddy Simulation of the Flow around Simplified Car Model
SAE Technical Papers | 2004
|Large-eddy simulation of the flow around simplified car model
Kraftfahrwesen | 2004
|Large-Eddy Simulation of the Flow Around Simplified car Model
British Library Conference Proceedings | 2004
|2004-01-0227 Large-Eddy Simulation of the Flow around Simplified Car Model
British Library Conference Proceedings | 2004
|Exploring the Flow Around a Simplified Bus with Large Eddy Simulation and Topological Tools
British Library Conference Proceedings | 2004
|