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A wall-distance-free low Re k — ϵ turbulence model

✍ Scribed by U. Goldberg; D. Apsley

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
1024 KB
Volume
145
Category
Article
ISSN
0045-7825

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✦ Synopsis

A low Reynolds number kl turbulence model is presented. The model is based on the following three attributes: (1) it involves neither explicit wall distance nor normal-to-wail directionality, except to the first grid point off walls; (2) it enforces time scale realisability; (3) it invokes a simple wall boundary condition for E. Several computed results are shown, indicating the validity of the current approach.

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✍ Siamak Kazemzadeh Hannani; Michel Stanislas 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 324 KB 👁 2 views

Developing Couette-Poiseuille flows at Re= 5000 are studied using a low Reynolds number ktwo-equation model and a finite element formulation. Mesh-independent solutions are obtained using a standard Galerkin formulation and a Galerkin/least-squares stabilized method. The predictions for the velocity