安定成層乱流場におけるエネルギースペクトルの統計理論による導出

稲毛 真一, 山川 正剛

doi:10.1299/kikaib.59.1965

安定成層乱流場におけるエネルギースペクトルの統計理論による導出

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書誌事項

タイトル別名

Modeling of Energy Spectrum of Stratified Shear Flow with Statistical Turbulence Theory.
アンテイセイソウランリュウバニオケルエネルギースペクトルノトウ

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説明

A new energy spectrum of stratified shear flow has been proposed, which includes the flux Richardson number effect. Modeling was performed from the two-scale direct interaction approximation (TSDIA) theory by Yoshizawa. According to the present spectrum, the difference between stratified and isothermal shear flow was proportional to the -3rd power of the wave number. Such a behavior was compatible with the experimental results of Iwashige et al.