Entrainment due to mean flow in two-layered fluid

Masaru Ura, Nobuhiro Matsunaga

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

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.

本文言語英語
ホスト出版物のタイトルTwenty First Costal Eng Conf
出版社Publ by ASCE
ページ2550-2560
ページ数11
ISBN(印刷版)0872626873
出版ステータス出版済み - 1988
外部発表はい
イベントTwenty-First Coastal Engineering Conference - Costa del Sol, Malaga, Spain
継続期間: 6 20 19886 25 1988

その他

その他Twenty-First Coastal Engineering Conference
CityCosta del Sol, Malaga, Spain
Period6/20/886/25/88

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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