期刊
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
卷 136, 期 3, 页码 -出版社
ASME
DOI: 10.1115/1.4026236
关键词
Reynolds stress; anisotropy; second moment turbulence; slow pressure strain; turbulent dissipation
In CFD modeling, the most widely used Reynolds stress models is the Speziale, Sarkar, Gatski (SSG) model. The present formulation, though similar in structure to the SSG model, is a mathematical variation assuming homogeneity of turbulence and is an improved model for the slow pressure strain of turbulence. The basic thrust is that anisotropy of dissipation tensor is not negligible when compared to the anisotropy of turbulent kinetic energy and affects the slow pressure strain rate. After an exhaustive survey of the available experimental results on return to isotropy, graphical plots reveal that the model performs as good as the SSG model.
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