Dynamic Smagorinsky model on anisotropic grids | Zendy

Alberto Scotti | Zendy; Charles Meneveau | Zendy; Massimiliano Fatica | Zendy

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Dynamic Smagorinsky model on anisotropic grids

Author(s) -

Alberto Scotti,

Charles Meneveau,

Massimiliano Fatica

Publication year - 1997

Publication title -

physics of fluids

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.188

H-Index - 180

eISSN - 1089-7666

pISSN - 1070-6631

DOI - 10.1063/1.869306

Subject(s) - physics , anisotropy , isotropy , turbulence , statistical physics , grid , mechanics , classical mechanics , geometry , optics , mathematics

To examine the performance of the dynamic Smagorinsky model in a controlled fashion on anisotropic grids, simulations of forced isotropic turbulence are performed using highly anisotropic discretizations. The resulting model coefficients are compared with an earlier prediction. Two extreme cases are considered: pancake-like grids, for which two directions are poorly resolved compared to the third, and pencil-like grids, where one direction is poorly resolved when compared to the other two.

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