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Subgrid-scale modeling suggested by a two-scale DIA
AbstractSubgrid-scale (SGS) modeling in large eddy simulation is studied using the results of a two-scale DIA about the effects of helicity controlling the energy cascade process. Such effects are closely related to vorticity effects on the SGS Reynolds stress that are lacking in the SGS-viscosity representation. These results are applied to the improvement of the SGS models of the Smagorinsky type. Discussion is also made about the relationship with the present two-equation model with the Smagorinsky model and the one-equation model based on the SGS energy.
Subgrid-scale modeling suggested by a two-scale DIA
AbstractSubgrid-scale (SGS) modeling in large eddy simulation is studied using the results of a two-scale DIA about the effects of helicity controlling the energy cascade process. Such effects are closely related to vorticity effects on the SGS Reynolds stress that are lacking in the SGS-viscosity representation. These results are applied to the improvement of the SGS models of the Smagorinsky type. Discussion is also made about the relationship with the present two-equation model with the Smagorinsky model and the one-equation model based on the SGS energy.
Subgrid-scale modeling suggested by a two-scale DIA
Yoshizawa, A (author)
Journal of Wind Engineering and Industrial Aerodynamics ; 46-47 ; 69-76
1993-01-01
8 pages
Article (Journal)
Electronic Resource
English
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