A Theoretical Study of Turbulent Energy Spectra in Stably Stratified Shear Flow

A Theoretical Study of Turbulent Energy Spectra in Stably Stratified Shear Flow

Turbulent energy spectra in stably stratified shear flow were studied theoretically based on the turbulent spectral equation and the experimental results. A theoretical expression of the turbulent energy spectra was derived for the inertial subrange. According to this expression, the energy spectra...

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Veröffentlicht in:Nihon Kikai Gakkai rombunshuu. B hen 1992/04/25, Vol.58(548), pp.1011-1014
Hauptverfasser: IWASHIGE, Kengo, INAGE, Shinichi, MATSUI, Goichi, YAMAKAWA, Masanori
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Sprache:eng ; jpn
Schlagworte:
Buoyancy Effect
turbulent flow
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container_end_page 1014
container_issue 548
container_start_page 1011
container_title Nihon Kikai Gakkai rombunshuu. B hen
container_volume 58
creator IWASHIGE, Kengo
INAGE, Shinichi
MATSUI, Goichi
YAMAKAWA, Masanori
description Turbulent energy spectra in stably stratified shear flow were studied theoretically based on the turbulent spectral equation and the experimental results. A theoretical expression of the turbulent energy spectra was derived for the inertial subrange. According to this expression, the energy spectra of the stably stratified shear flow approached those of isothermal shear flow as the wave number increased, and the difference in energy spectra between stratified and isothermal flows was directly proportional to the -3rd power of the wave number. The one-dimensional energy spectrum obtained experimentally conformed to the expression.
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identifier ISSN: 0387-5016
ispartof Transactions of the Japan Society of Mechanical Engineers Series B, 1992/04/25, Vol.58(548), pp.1011-1014
issn 0387-5016
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language eng ; jpn
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source Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese
subjects Buoyancy Effect
turbulent flow
title A Theoretical Study of Turbulent Energy Spectra in Stably Stratified Shear Flow
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