Prediction of temperature fluctuation and its dissipation rate in thermally stratified grid turbulence

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Other Title
  • 温度成層を伴う格子乱流における温度ゆらぎとその散逸率の予測
  • オンド セイソウ オ トモナウ コウシ ランリュウ ニ オケル オンドユラギ ト ソノ サンイツリツ ノ ヨソク

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Abstract

<p>In studying turbulence model, grid turbulence is the most fundamental flow field for the numerical prediction of turbulence. However, there seem to be not necessarily many experiments of thermally stratified grid turbulence and they seem to be not necessarily produce reliable data. Therefore, we need to pay attention to the results from the experiments when referring to them to verify turbulence models. In this study, we consider the model for the dissipation rate of temperature fluctuation and show the results.</p>

Journal

  • SEISAN KENKYU

    SEISAN KENKYU 70 (1), 15-18, 2018

    Institute of Industrial Science The University of Tokyo

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