| EVALUATION OF THREE-DIMENSIONAL NUMERICAL MODEL FOR SALINE INTRUSION AND PURGING IN SEWAGE OUTFALLS |
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| 作者姓名： | WU Wei YAN Zhong-min |
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| 作者单位： | WU Wei，YAN Zhong-min College of Water Conservancy and Hydropower Engineering，Hohai University，Nanjing 210098，China |
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| 摘 要： | Saline intrusion into sewage outfalls will greatly decrease the efficiency of the structures. The numerical model for this flow has been limited to one- and two-dimensional ones. In this article, a three-dimensional numerical model for saline intrusion and purging in sewage outfalls was developed. The flow was modeled in three dimensions under turbulent conditions with the RNG k ?ε turbulence model. The numerical results provided quantitative evidence of the fundamental flow mechanisms that took place during saline intrusion and purging. The comparisons of the results with that of two-dimensional model and that of experiments indicate that the three-dimensional numerical model developed in this article is more effective in predicting the internal flow in outfalls.
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| 关 键 词： | 三维数值模型 海水入侵 污水排污口 清洗 |
| 收稿时间： | 2005-09-27 |
| 修稿时间： | 2006-04-10 |
EVALUATION OF THREE-DIMENSIONAL NUMERICAL MODEL FOR SALINE INTRUSION AND PURGING IN SEWAGE OUTFALLS |
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| WU Wei YAN Zhong-min.EVALUATION OF THREE-DIMENSIONAL NUMERICAL MODEL FOR SALINE INTRUSION AND PURGING IN SEWAGE OUTFALLS[J].Journal of Hydrodynamics,2007,19(1):48-53. |
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| Authors: | WU Wei YAN Zhong-min |
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| Affiliation: | 1. Department of Mechanical and Industrial Engineering, Sultan Qaboos University, P.O. Box 33, PC 123 Muscat, Oman;2. Department of Chemical Engineering, University of Waterloo, N2L 3G1 Waterloo, Ontario, Canada;3. Department of Environmental Engineering, Faculty of Civil Engineering, Yildiz Technical University, 34220, Davutpasa, Esenler, Istanbul, Turkey |
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| Abstract: | Saline intrusion into sewage outfalls will greatly decrease the efficiency of the structures. The numerical model for this flow has been limited to one- and two-dimensional ones. In this article, a three-dimensional numerical model for saline intrusion and purging in sewage outfalls was developed. The flow was modeled in three dimensions under turbulent conditions with the RNG turbulence model. The numerical results provided quantitative evidence of the fundamental flow mechanisms that took place during saline intrusion and purging. The comparisons of the results with that of two-dimensional model and that of experiments indicate that the three-dimensional numerical model developed in this article is more effective in predicting the internal flow in outfalls. |
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| Keywords: | saline intrusion sea outfalls numerical simulation three-dimensional numerical model |
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