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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| File | |
| 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
|
| 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
|
| 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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