An investigation of SGS-stress anisotropy modeling in complex turbulent flow fields

研究成果: ジャーナルへの寄稿Conference article

抜粋

An effective model expression for representing the anisotropy of the subgrid-scale (SGS) stress used in large eddy simulation was investigated. The present SGS-stress model was constructed by combining a representative isotropic linear eddy-viscosity model (EVM) with an extra anisotropic term. This extra term was based on a residual term after subtracting an EVM form from the Bardina's SGS-Reynolds-stress model (Bardina et al., AIAA Paper, 80-1357, 1980). The resultant term yields no undesirable energy transfer. Thus, the present anisotropic term is expected to have no serious effect on computational stability, even if highly anisotropic SGS-stress components are returned. In order to discuss the model performance, the present SGS model was applied to a fundamental plane channel flow and a plane impinging jet.

元の言語英語
ページ(範囲)2081-2088
ページ数8
ジャーナルProceedings of the International Symposium on Turbulence, Heat and Mass Transfer
2012-September
DOI
出版物ステータス出版済み - 1 1 2012
イベント7th International Symposium On Turbulence, Heat and Mass Transfer, THMT 2012 - Palermo, イタリア
継続期間: 9 24 20129 27 2012

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All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

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