Application of linear and non-linear k-ε models to flows around spur dikes
水工学論文集 Volume 42
Page 643-648
published_at 1998-02
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Title ( eng ) |
Application of linear and non-linear k-ε models to flows around spur dikes
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Creator |
Peng Jing
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Source Title |
水工学論文集
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Volume | 42 |
Start Page | 643 |
End Page | 648 |
Abstract |
This paper is concerned with three-dimensional numerical analysis of turbulent flows around submerged spur-dikes. A finite volume method is employed to discretize the governing equations. A nonlinear k-ε model proposed by Shih et al. and a linear k-ε model modified by Zhu-Shih are applied to two cases of flow with different spur dikes. The comparison with measured data shows that the nonlinear k-ε model reproduces mean velocity field better than the modified linear k-ε model in the two cases. The reason of the superiority of the non-linear model is discussed. It is shown, however, that further improvement in the numerical model is required to reproduce the complex flow phenomena accurately.
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Keywords |
spur dikes
turbulent flow
linear k-ε model
non-linear k-ε model
three-dimensionality
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NDC |
Construction. Civil engineering [ 510 ]
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Language |
eng
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Resource Type | journal article |
Publisher |
土木学会
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Date of Issued | 1998-02 |
Publish Type | Version of Record |
Access Rights | open access |
Source Identifier |
[ISSN] 0916-7374
[NCID] AN10426673
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