Numerical investigation on scale-by-scale Reynolds stress transport in plane Couette turbulence

Takuya Kawata, Takahiro Tsukahara

研究成果: Paper

抜粋

Scale-by-scale Reynolds stress transport in a turbulent plane Couette flow is investigated by means of direct numerical simulation. For reducing computational cost, we employ a computational domain whose spanwise length is large enough to capture the essential dynamics of the flow whereas the streamwise extent is as small as the minimal length. The computation with such a reduced-size domain is confirmed to well reproduce the statistical characteristics of the flow including the spectral contents. We investigate the spectral budget of the Reynolds-shear-stress transport with a particular interest in the roles of the interscale and spatial transport by nonlinear scale interactions, and the effect of pressure, which is extremely difficult to measure by experiment, is also discussed.

元の言語English
出版物ステータスPublished - 2019
イベント11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019 - Southampton, United Kingdom
継続期間: 2019 7 302019 8 2

Conference

Conference11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019
United Kingdom
Southampton
期間19/7/3019/8/2

ASJC Scopus subject areas

  • Atmospheric Science
  • Aerospace Engineering

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  • これを引用

    Kawata, T., & Tsukahara, T. (2019). Numerical investigation on scale-by-scale Reynolds stress transport in plane Couette turbulence. 論文発表場所 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019, Southampton, United Kingdom.