| Numerical Simulation of Local Scour Around A Large Circular Cylinder Under Wave Action |
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| 作者姓名： | 赵明 滕斌 |
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| 作者单位： | Slake Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Slake Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology Dalian 116024，China，Dalian 116024，China |
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| 摘 要： | A horizontal two- dimensional numerical model is developed for estimation of sediment transport and sea bed change around a large circular cylinder under wave action. The wave model is based on an elliptic mild slope equation. The wave-induced current by the gradient of radiation stress is considered and a depth integrated shallow water equation is applied to the calculation of the current. The mass transport velocity and the bed shear stress due to streaming are considered, which are important factors affecting the sediment transport around a structure due to waves, especially in reflective areas. Wave-current interaction is taken into account in the model for computing the bed shear stress. The model is implemented by a finite element method. The results of this model are compared with those from other methods and agree well with experimental data.
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Numerical Simulation of Local Scour Around A Large Circular Cylinder Under Wave Action |
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| ZHAO Ming.Numerical Simulation of Local Scour Around A Large Circular Cylinder Under Wave Action[J].China Ocean Engineering,2001(3):371-382. |
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| Authors: | ZHAO Ming |
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| Abstract: | A horizontal two- dimensional numerical model is developed for estimation of sediment transport and sea bed change around a large circular cylinder under wave action. The wave model is based on an elliptic mild slope equation. The wave-induced current by the gradient of radiation stress is considered and a depth integrated shallow water equation is applied to the calculation of the current. The mass transport velocity and the bed shear stress due to streaming are considered, which are important factors affecting the sediment transport around a structure due to waves, especially in reflective areas. Wave-current interaction is taken into account in the model for computing the bed shear stress. The model is implemented by a finite element method. The results of this model are compared with those from other methods and agree well with experimental data. |
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| Keywords: | local scour sediment transport wave action current numerical simulation circular cylinder |
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