Backscatter in the Rational LES Model

TitleBackscatter in the Rational LES Model
Publication TypeReport
Year of Publication2002
AuthorsIliescu, T, Fischer, PF
Date Published07/2002
Other NumbersANL/MCS-P977-0702
Abstract

<p>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 Ret = 180 and Ret = 395. The rational LES model yielded improved results and was more stable numerically.</p>

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