開水路乱流場の非等方性に及ぼす水面の効果

水工学論文集 Volume 38 Page 821-824 published_at 1994-02
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Title ( jpn )
開水路乱流場の非等方性に及ぼす水面の効果
Title ( eng )
Modeling of free surface effects on anisotropy of turbulence
Creator
Tsuneyama Shuji
Source Title
水工学論文集
Volume 38
Start Page 821
End Page 824
Abstract
A Reynolds stress equation model is developed to analyze the turbulence structure of fully developed open channel flows. Main emphasis is placed on the reproduction of the anisotropy of turbulence and the modeling of the effect of free surface. The pressure-strain term in the model consists of the Speziale-Sarkar-Gastki model and the Shir model for free surface effects. Through comparison on the three turbulent normal stresses and analysis of performance of the pressure-strain correlation, it is shown that the present model reasonably captures the intensified anisotropy of turbulence near free surface.
Keywords
turbulent flows
anisotropy of turbulence
free surface
pressure-strain correlation
Speziale-Sarkar-Gastki model
NDC
Construction. Civil engineering [ 510 ]
Language
jpn
Resource Type journal article
Publisher
土木学会
Date of Issued 1994-02
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0916-7374
[NCID] AN10426673