日本風工学会論文集
Online ISSN : 1349-340X
Print ISSN : 1349-3507
ISSN-L : 1349-340X
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33 巻, 4 号
[No. 117]
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論文
  • 逆転層を有する対流境界層中の乱流構造と拡散挙動に関するLES解析
    安部 諭, 田村 哲郎, 中山 浩成
    2008 年 33 巻 4 号 p. 131-148
    発行日: 2008/10/31
    公開日: 2009/06/09
    DOIhttps://doi.org/10.5359/jwe.33.131
    ジャーナル フリー
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    This paper performs Large-eddy simulation (LES) of gaseous dispersion in the atmospheric convective boundary layer (CBL) which is capped by a temperature inversion. The vertical temperature flux profile becomes negative within the capping inversion, and its negative peak value is indicated due to the entrainment of a plume and its resulting fluctuation behavior. Turbulence structures based on the entrainment are determined by the strength of capping inversion. Furthermore, gaseous dispersion behavior is sensitively influenced by temperature profile. Our objective is to compare LES results with wind tunnel and observation data for numerical validation, also to investigate characteristics of turbulence structures and gaseous dispersion in CBL with the capping inversion.
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