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Backscatter in the rational LES model

✍ Scribed by Traian Iliescu; Paul Fischer

Book ID
104014839
Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
381 KB
Volume
33
Category
Article
ISSN
0045-7930

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✦ Synopsis

This paper presents a comparison for the backscatter (the inverse transfer of energy from small to large scales) in the rational and the gradient large eddy simulation (LES) models. We applied both LES models in the numerical simulation of turbulent channel flows at Re s ΒΌ 180 and 395. The rational LES model yielded improved results and was more stable numerically.

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