Performance of an anisotropy-resolving subgrid-scale model for predicting turbulent channel flow with wall roughness

Y. Zhang, H. Kihara, K. Abe

研究成果: ジャーナルへの寄稿会議記事査読

抄録

Large eddy simulation (LES) of a turbulent channel flow with wall roughness on one side was performed by adopting an anisotropy-resolving subgrid-scale (SGS) model at a shear Reynolds number = 395. To investigate the grid dependency of the LES results caused by the SGS model, three grid resolutions were tested under the same definition of a roughness shape by using the immersed boundary method. The obtained results were compared with the direct numerical simulation data without roughness (flat wall) and discussed using general knowledge in this kind of flow fields as reference. The primary concern was focused on how the present SGS model could reduce the grid dependency as well as the affects of roughness on the mean velocity and turbulent stresses.

本文言語英語
ページ(範囲)235-238
ページ数4
ジャーナルProceedings of the International Symposium on Turbulence, Heat and Mass Transfer
0
出版ステータス出版済み - 2015
イベント8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015 - Sarajevo, ボスニア・ヘルツェゴビナ
継続期間: 9月 15 20159月 18 2015

!!!All Science Journal Classification (ASJC) codes

  • 流体および伝熱

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