A non-equilibrium dynamic wall-model for LES of high Reynolds number airfoil flow near stall condition

Soshi Kawai, Asada Kengo, Kozo Fujii

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Large-eddy simulation (LES) with non-equilibrium dynamic wall-model is applied to a subsonic flow over an airfoil near stall condition at high Reynolds number (chord based Rec = 2.1×106) to investigate the predictability of the wall-modeled LES for the transitional and separated flow. The wall model considered in this study is built based on the recent wall-model developments by Kawai and Larsson [Phys. Fluids 24 015105, 2012; and Phys. Fluids accepted (to appear), 2013] and is extended to the transitional and separated flow by introducing a transition treatment in the wall model. Comparisons between the non-equilibrium wall model and equilibrium model illustrate the importance of involving the non-equilibrium effects into the wall model. By incorporating the non-equilibrium effects, the wall-modeled LES yields accurate resolved turbulence, both in terms of statistics and structures.

本文言語English
ホスト出版物のタイトル51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
出版ステータスPublished - 2013 8 19
外部発表はい
イベント51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013 - Grapevine, TX, United States
継続期間: 2013 1 72013 1 10

出版物シリーズ

名前51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013

Other

Other51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
国/地域United States
CityGrapevine, TX
Period13/1/713/1/10

ASJC Scopus subject areas

  • 宇宙惑星科学
  • 航空宇宙工学

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