ダイナミック手法による複断面直線開水路乱流のLES
水工学論文集 Volume 49
Page 667-672
published_at 2005-02
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Title ( jpn ) |
ダイナミック手法による複断面直線開水路乱流のLES
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Title ( eng ) |
Large-eddy simulation of turbulent flow in a straight compound open channel using the dynamic procedure
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Creator |
Yokojima Satoshi
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Source Title |
水工学論文集
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Volume | 49 |
Start Page | 667 |
End Page | 672 |
Abstract |
An large-eddy simulation of a turbulent flow using a dynamic two-parameter model has been carried out for a straight open channel with one flood plain at a Reynolds number of 5,300, based on the hydraulic radius and bulk mean velocity. This can be viewed as an extension of Satoh's simulation [J. Hydr., Coastal and Envir. Engrg. JSCE 628/II-48 (1999) 115] in which the standard Smagorinsky model was employed as an SGS stress model. Overall, the computational results agree quite well with laboratory measurements by Tominaga and Nezu [J. Hydr. Engrg. ASCE 117 (1991) 21] in spite of difference in their Reynolds numbers and show that the present method is a promising tool for natural river predictions.
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Keywords |
large-eddy simulation
compound open channel
dynamic two-parameter model
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NDC |
Construction. Civil engineering [ 510 ]
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Language |
jpn
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Resource Type | journal article |
Publisher |
土木学会
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Date of Issued | 2005-02 |
Publish Type | Author’s Original |
Access Rights | open access |
Source Identifier |
[ISSN] 0916-7374
[NCID] AN10426673
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