Entrainment due to mean flow in two-layered fluid

Masaru Ura, Nobuhiro Matsunaga

研究成果: 書籍/レポート タイプへの寄稿会議への寄与


The entrainment phenomena have been investigated across an interface between two-layered stratified flow induced by wind shear stress. The velocities of mean flow, turbulence and entrainment have been measured under three different conditions of water surface by using a wind-wave tank. When the entrainment velocity ue is expressed on the basis of the turbulent quantities at the interface, the turbulent entrainment coefficient is expressed, in an equation given in the paper, interms of effective byoyancy, turbulence intensity and integral lengthscale of turbulence at the interface. The result coincides with the relationship of entrainment due to oscillating grid turbulence, in which the mean flow does not exist. When, for practical purposes, the estimation of ue is made by using the mean velocity and the depth of mixed layer, another expression, also given in the paper, is derived.

ホスト出版物のタイトルTwenty First Costal Eng Conf
出版社Publ by ASCE
出版ステータス出版済み - 1988
イベントTwenty-First Coastal Engineering Conference - Costa del Sol, Malaga, Spain
継続期間: 6月 20 19886月 25 1988


その他Twenty-First Coastal Engineering Conference
CityCosta del Sol, Malaga, Spain

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)


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