| A VERTICAL 2-D NUMERICAL SIMULATION OF SUSPENDED SEDIMENT TRANSPORT |
| |
| 作者姓名： | ZHANG Jing-xin LIU Hua |
| |
| 作者单位： | ZHANG Jing-xin，LIU Hua Department of Engineering Mechanics，Shanghai Jiaotong University，Shanghai 200240，China |
| |
| 摘 要： | Numerical simulation of sediment transport and bed evolution has become an important technique in the sediment research. In this article,a numerical model of suspended sediment transport was proposed,which was established in the vertical σ coordinate for fitting the free surface and bottom. In the research of the sediment transport,the predominant factors were found to be the eddy diffusion,the settling velocity,the bed condition and so on. By the aid of the model in the article,the contribution of the Rouse parameter to the vertical profile of sediment concentration was clarified,which was identical to the theoretical results. In the comparison of the numerical results with laboratory data,the agreement between experimental data and numerical results was reached except for some data. And the possible reasons for the disagreement were discussed.
|
| 关 键 词： | σ coordinate |
| 收稿时间： | 2006-03-13 |
| 修稿时间： | 2006-04-01 |
A VERTICAL 2-D NUMERICAL SIMULATION OF SUSPENDED SEDIMENT TRANSPORT |
| |
| ZHANG Jing-xin LIU Hua.A VERTICAL 2-D NUMERICAL SIMULATION OF SUSPENDED SEDIMENT TRANSPORT[J].Journal of Hydrodynamics,2007,19(2):217-224. |
| |
| Authors: | ZHANG Jing-xin LIU Hua |
| |
| Affiliation: | 1. WEIR Research Unit, Department of Architecture and Civil Engineering, University of Bath, Bath, UK;2. Coastal Research Laboratory, International Hurricane Research Center, Florida International University, Miami, USA;3. HR Wallingford, Wallingford, Oxon, UK;1. Zhejiang Institute of Hydraulics and Estuary, Hangzhou 310020, China;2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;3. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;1. Vrije Universiteit Brussel, Department ELEC, Pleinlaan 2, B-1050 Brussels, Belgium;2. Flanders Make, Celestijnenlaan 300, B-3001 Heverlee, Belgium;1. Department of Civil Engineering, Isfahan University of Technology, P.O. Box 84156, Isfahan, Iran;2. Department of Civil Engineering, Faculty of Engineering, Shahrekord University, P.O. Box 115, Shahrekord, Iran;1. Department of Mathematics, University of Arizona, Tucson, AZ 85721 USA;2. Department of Atmospheric Sciences, University of Arizona, Tucson, AZ 85721 USA;3. Department of Physics, University of Arizona, Tucson, AZ 85721 USA;4. Department of Aerospace Engineering and Engineering Mechanics, University of Texas, Austin, TX 78712, USA;5. Institute of Computational and Engineering Sciences, University of Texas, Austin, TX 78712, USA |
| |
| Abstract: | Numerical simulation of sediment transport and bed evolution has become an important technique in the sediment research. In this article, a numerical model of suspended sediment transport was proposed, which was established in the vertical coordinate for fitting the free surface and bottom. In the research of the sediment transport, the predominant factors were found to be the eddy diffusion, the settling velocity, the bed condition and so on. By the aid of the model in the article, the contribution of the Rouse parameter to the vertical profile of sediment concentration was clarified, which was identical to the theoretical results. In the comparison of the numerical results with laboratory data, the agreement between experimental data and numerical results was reached except for some data. And the possible reasons for the disagreement were discussed. |
| |
| Keywords: | suspended sediment transport 2-D numerical model |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
