We present a framework which can be used to rigorously assess and compare large-eddy simulation methods. We apply this to LES of homogeneous isotropic turbulence using a Smagorin-sky model and three different discretizations. By systematically varying the simulation resolution and the Smagorinsky coefficient, one can determine parameter regions for which one, two or multiple flow predictions are simultaneously predicted with approximately minimal error. To this end errors on the predicted longitudinal integral length scale, the resolved kinetic energy and the resolved enstrophy are considered. Parameter regions where all considered errors are simultaneously (nearly) minimal are entitled ‘multi-objective optimal’ parameter regions. Surprisingly, we find that a standard second-order method has a larger ‘multi-objective optimal’ parameter region than two considered fourth order methods. Moreover, the errors in the respective ‘multi-objective optimal’ regions are also lowest for the second-order scheme.
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ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4751-9
PROCEEDINGS PAPER
A Framework to Assess the Quality and Robustness of LES Codes
J. Meyers,
J. Meyers
Universite´ Pierre et Marie Curie, Paris Cedex, France
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P. Sagaut,
P. Sagaut
Universite´ Pierre et Marie Curie, Paris Cedex, France
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B. J. Geurts
B. J. Geurts
University of Twente, Enschede, The Netherlands
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J. Meyers
Universite´ Pierre et Marie Curie, Paris Cedex, France
P. Sagaut
Universite´ Pierre et Marie Curie, Paris Cedex, France
B. J. Geurts
University of Twente, Enschede, The Netherlands
Paper No:
FEDSM2006-98262, pp. 881-886; 6 pages
Published Online:
September 5, 2008
Citation
Meyers, J, Sagaut, P, & Geurts, BJ. "A Framework to Assess the Quality and Robustness of LES Codes." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 2: Fora. Miami, Florida, USA. July 17–20, 2006. pp. 881-886. ASME. https://doi.org/10.1115/FEDSM2006-98262
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