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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| File | |
| 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
|
| Title ( eng ) |
Large-eddy simulation of turbulent flow in a straight compound open channel using the dynamic procedure
|
| Creator |
Yokojima Satoshi
|
| Source Title |
水工学論文集
|
| 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
|
| NDC |
Construction. Civil engineering [ 510 ]
|
| Language |
jpn
|
| Resource Type | journal article |
| Publisher |
土木学会
|
| Date of Issued | 2005-02 |
| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0916-7374
[NCID] AN10426673
|
