期刊
INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS
卷 22, 期 10, 页码 649-657出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10618560802448551
关键词
turbulent boundary layer; wall function; entropy generation; turbulent dissipation; turbomachinery
For non-dimensional pressure gradients sufficiently low and Reynolds numbers sufficiently high for the constant shear stress approximation to be valid at the first node of a turbulent wall layer computation, relationships for entropy generation rates are applied to popular wall 'laws'. The resulting observations lead to a simple approach for evaluating the entropy generation rate per unit area in a computational fluid dynamics calculation for situations which satisfy this approximation.
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