A non-isotropic multiple-scale turbulence model | Zendy

C. P. Chen | Zendy; Kuan-liang Guo | Zendy

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A non-isotropic multiple-scale turbulence model

Author(s) -

C. P. Chen,

Kuan-liang Guo

Publication year - 1991

Publication title -

applied mathematics and mechanics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.499

H-Index - 43

eISSN - 1573-2754

pISSN - 0253-4827

DOI - 10.1007/bf02451484

Subject(s) - turbulence , k epsilon turbulence model , isotropy , k omega turbulence model , scale (ratio) , scale model , reynolds stress equation model , statistical physics , reynolds number , turbulence modeling , flow (mathematics) , mechanics , physics , computer science , aerospace engineering , engineering , optics , quantum mechanics

This paper describes a newly developed non-isotropic multiple-scale turbulence model (MS/ASM) for complex flow calculations. This model focuses on the direct modeling of Reynolds stresses and utilizes split-spectrum concepts to model multiple-scale effects in turbulence. Validation studies on free shear flows, rotating flows and recirculating flows show that the current model performs significantly better than the single-scalek−ε model. The present model is relatively inexpensive in terms of CPU time which makes in suitable for broad engineering flow applications.

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