| Numerical Simulation of Residual Circulation due to Bottom Rouglmess Variability Under Tidal Flows in A Semi-Enclosed Bay |
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| 作者姓名： | 槐文信 T. Komatsu 曾小辉 |
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| 作者单位： | [1]State Key laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China [2]Department of Urban and Environmental Engineering, Kyushu University, Fukuoka 812 - 8581, Japan |
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| 基金项目： | This work was supported by the National Science Fund for Distinguished Young Scholars of Ministry of Eduction, China |
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| 摘 要： | Nowadays there are some chronic serious environmental problems, such as eutrophication, blue tide and so on, in a complicated coastal zone or a semi-enclosed bay, because the water exchanges between an inner bay and an outer sea is weak compared with the supply of contaminant. Under this situation, a method to improve the water quality by 3-dimensional small unsymmetrical structures has been proposed by Komatsu et al. In this paper, several numerical simulations of the tidal current and concentration for various arrangements of bottom roughness in a semi-enclosed model bay are carfled out with a depth-averaged 2-D numerical model. The model is solved by the hybrid finite analytic method with nonstaggered grid. And the SIMPLES algorithm with Rhie and Chow＇ s momentum interpolation technique is used for the simulation. The effect of Komatsu＇ s method for water purification is examined by numerical simulation. The result of numerical experiment indicates that it is possible to generate a new tidal residual current and to activate a tidal exchange by bottom roughness arrangement only.
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| 关 键 词： | 水净化 粗糙度 水污染 水环境 海水 |
| 收稿时间： | 2005-08-26 |
| 修稿时间： | 2005-11-06 |
Numerical Simulation of Residual Circulation due to Bottom Rouglmess Variability Under Tidal Flows in A Semi-Enclosed Bay |
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| HUAI Wen-xin , T. Komatsu ,ZENG Xiao-hui.Numerical Simulation of Residual Circulation due to Bottom Rouglmess Variability Under Tidal Flows in A Semi-Enclosed Bay[J].China Ocean Engineering,2005,19(4):601-612. |
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| Authors: | HUAI Wen-xin T Komatsu ZENG Xiao-hui |
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| Abstract: | |
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| Keywords: | semi-enclosed bay bottom roughness hybrid finite analytic method water purification depth-averaged 2 D model |
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