Evaluation of Detached Eddy Simulations for Predicting the Flow Over Periodic Hills

Publication date
2007
Document type
Conference paper
Author
Šarić, Sanjin
Jakirlić, Suad
Jaffrézic, Benoit
Deng, G.
Chikhaoui, Oussama
Fröhlich, Jochen
Terzi, Dominic von
Manhart, Michael
Peller, Nikolaus
Organisational unit
DOI
URI
Conference
CEMRACS 2005, Computational Aeroacoustics and Computational Fluid Dynamics in Turbulent Flows, Marseille, France, July 18 – August 26, 2005
Book title
Computational Aeroacoustics and Computational Fluid Dynamics in Turbulent Flows
First page
133
Last page
145
Peer-reviewed
✅
Part of the university bibliography
Nein
Abstract
The performance of an hybrid LES–RANS strategy, the Detached Eddy Simulation (DES), as a predictive tool for turbulent channel flow with massive separation is scrutinized. This is undertaken in a collaborative effort involving five different flow solvers used by five different groups to cover a broad range of numerical methods and implementations. This paper concentrates on DES results obtained with a computational mesh of approximately one million cells. The results are compared to those obtained by Large Eddy Simulations (LES) using the standard and the dynamic Smagorinsky models and an alternative hybrid LES–RANS – all computed on the same grid. Data of a highly resolved LES (roughly 13 million cells) are used for reference. Furthermore, the impact of resolution and, therefore, the location of the LES–RANS interface is studied.
Cite as
Saric, S., Jakirlic, S., Breuer, M., Jaffrezic, B., Deng, G., Chikhaoui, O., Fröhlich, J., von Terzi, D., Manhart, M. and Peller, N.: Evaluation of Detached Eddy Simulations for Predicting the Flow Over Periodic Hills, ESAIM Proceedings, CEMRACS 2005 (Centre d ete Mathematique de Recherche Avancee en Calcul Scientifique), Computational Aeroacoustics and Computational Fluid Dynamics in Turbulent Flows, Marseille, France, July 18 – August 26, 2005, eds. E. Cances and J.F. Gerbeau, vol. 16, pp. 133–145, (2007).
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