| Approach of moving boundary and its application in 3D tidal current simulation of Changjiang (Yangtze) River Estuary based on ECOMSED model |
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| 作者姓名： | KUANG Cuiping SUN Bo LIU Shuguang GU Jie YU Weiwei |
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| 作者单位： | KUANG Cuiping,SUN Bo,LIU Shuguang,YU Weiwei(Department of Hydraulic Engineering, Tongji University, Shanghai 200092, China);GU Jie(Shanghai Ocean University, Shanghai 200090, China) |
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| 基金项目： | The Foundation of Shanghai 908 (PJ4);;the key project of the national eleventh five-year science and technology planning supported by The Ministry of Science and Technology under contract No 2008BAJ08B14;;the key project for the funda-mental science and technology research supported by The Ministry of Science and Technology under contract No 2007FY110300-03 |
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| 摘 要： | Considering three-dimensional model ECOMSED can not simulate wetting-drying of shoal with its fixed boundary, an approach to represent moving boundary in the model is introduced here. This approach smoothly joints the internal and external mode by making use of wetting and drying technique and is verified by a numerical test which presents a good agreement with the previous test results obtained by other researchers. A three dimensional numerical model is established to simulate the hydrodynamics in spring tide in the Changjiang (Yangtze) River estuary by this modified ECOMSED model which is also validated through the observed field data, the simulation presents a good periodic tidal change. It also successfully simulates the tidal current of computational areas and reproduces the tidal flat intermittent appearance.
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| 关 键 词： | 移动边界 长江口 应用模型 三维仿真 潮流 ECOMSED模式 基础 运动 |
| 收稿时间： | 9/9/2008 12:00:00 AM |
| 修稿时间： | 5/7/2009 12:00:00 AM |
Approach of moving boundary and its application in 3D tidal current simulation of Changjiang (Yangtze) River Estuary based on ECOMSED model |
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| KUANG Cuiping,SUN Bo,LIU Shuguang,GU Jie,YU Weiwei.Approach of moving boundary and its application in 3D tidal current simulation of Changjiang (Yangtze) River Estuary based on ECOMSED model[J].Acta Oceanologica Sinica,2009,28(4):78-85. |
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| Authors: | KUANG Cuiping SUN Bo LIU Shuguang GU Jie and YU Weiwei |
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| Institution: | 1.Department of Hydraulic Engineering, Tongji University, Shanghai 200092, China2.Shanghai Ocean University, Shanghai 200090, China |
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| Abstract: | Considering three-dimensional model ECOMSED can not simulate wetting-drying of shoal with its fixed boundary, an approach to represent moving boundary in the model is introduced here. This approach smoothly joints the internal and external mode by making use of wetting and drying tech-nique and is verified by a numerical test which presents a good agreement with the previous test results obtained by other researchers. A three dimensional numerical model is established to simu-late the hydrodynamics in sprin... |
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| Keywords: | ECOMSED moving boundaries test with variable slope Changjiang (Yangtze) River Estuary 3D tidal numerical model |
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