| KUANG Cuiping,SUN Bo,LIU Shuguang,GU Jie,YU Weiwei. 2009. Approach of moving boundary and its application in 3D tidal current simulation of Changjiang (Yangtze) River Estuary based on ECOMSED model. Acta Oceanologica Sinica, (4):78－85 |
| Approach of moving boundary and its application in 3D tidal current simulation of Changjiang (Yangtze) River Estuary based on ECOMSED model |
| Approach of moving boundary and its application in 3D tidal current simulation of Changjiang (Yangtze) River Estuary based on ECOMSED model |
| Received:September 09, 2008 Revised:May 07, 2009 |
| DOI： |
| Key words:ECOMSED moving boundaries test with variable slope Changjiang (Yangtze) River Estuary 3D tidal numerical model |
| 中文关键词: ECOMSED moving boundaries test with variable slope Changjiang (Yangtze) River Estuary 3D tidal numerical model |
| 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 fundamental science and technology research supported by The Ministry of Science and Technology under contract No. 2007FY110300-03. |
| Author Name | Affiliation | E-mail | | KUANG Cuiping | Department of Hydraulic Engineering, Tongji University, Shanghai 200092, China | cpkuang@tongji.edu.cn | | SUN Bo | Department of Hydraulic Engineering, Tongji University, Shanghai 200092, China | | | LIU Shuguang | Department of Hydraulic Engineering, Tongji University, Shanghai 200092, China | | | GU Jie | Shanghai Ocean University, Shanghai 200090, China | | | YU Weiwei | Department of Hydraulic Engineering, Tongji University, Shanghai 200092, 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 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. |
| 中文摘要: |
| 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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