Wall-modeling in large eddy simulation: Length scales, grid resolution, and accuracy

Soshi Kawai, Johan Larsson

研究成果: Article査読

295 被引用数 (Scopus)

抄録

This paper addresses one of the most persistent errors in wall-modeled large eddy simulation: the inevitable presence of numerical and subgrid modeling errors in the first few grid points off the wall, which leads to the so-called "log-layer mismatch" with its associated 10-15% error in the predicted skin friction. By considering the behavior of turbulence length scales near a wall, the source of these errors is analyzed, and a method that allows for the log-layer mismatch to be removed, thereby yielding accurately predicted skin friction, is proposed.

本文言語English
論文番号015105
ジャーナルPhysics of Fluids
24
1
DOI
出版ステータスPublished - 2012 1月 5
外部発表はい

ASJC Scopus subject areas

  • 計算力学
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 流体および伝熱

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