| TANG Jun,SHEN Yongming,SHI Feng,ZHANG Ming. 2012. Numerical study of wave and longshore current interaction. Acta Oceanologica Sinica, (3):10－17 |
| Numerical study of wave and longshore current interaction |
| Numerical study of wave and longshore current interaction |
| Received:June 10, 2011 Revised:September 20, 2011 |
| DOI：10.1007/s13131-012-0202-3 |
| Key words:water wave longshore current wave current interaction numerical simulation surf zone |
| 中文关键词: water wave longshore current wave current interaction numerical simulation surf zone |
| 基金项目:The National Natural Science Foundation of China under contract Nos 50839001, 51179025 and 50709004; the Specialized Research Fund for the Doctoral Program of Higher Education of China under contract No.20070141032. |
| Author Name | Affiliation | E-mail | | TANG Jun | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China | jtang@dlut.edu.cn | | SHEN Yongming | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China | | | SHI Feng | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China | | | ZHANG Ming | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China | |
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| Abstract: |
| Wave and longshore current interaction was examined based on the numerical models. In these models, water waves in the presence of longshore currents were modeled by parabolic mild slope equation, and wave breaking induced longshore currents were modeled by shallow water equation. Water wave provided the radiation stress gradients to drive current. Wave and longshore current interactions were considered by cycling the wave and longshore current models to a steady state. The experiments for regular and irregular breaking wave induced longshore currents by Hamilton and Ebersole (2001) and Reniers and Battjes (1997) were simulated. The numerical results indicate that the present models are effective for simulating the interaction of wave and breaking wave induced longshore currents, and the numerically simulated longshore current at wave breaking point considering wave and longshore current interaction show some disagreement with those neglecting the wave-current interaction, and the breaking wave induced longshore current effect on wave transformation is not obvious. |
| 中文摘要: |
| Wave and longshore current interaction was examined based on the numerical models. In these models, water waves in the presence of longshore currents were modeled by parabolic mild slope equation, and wave breaking induced longshore currents were modeled by shallow water equation. Water wave provided the radiation stress gradients to drive current. Wave and longshore current interactions were considered by cycling the wave and longshore current models to a steady state. The experiments for regular and irregular breaking wave induced longshore currents by Hamilton and Ebersole (2001) and Reniers and Battjes (1997) were simulated. The numerical results indicate that the present models are effective for simulating the interaction of wave and breaking wave induced longshore currents, and the numerically simulated longshore current at wave breaking point considering wave and longshore current interaction show some disagreement with those neglecting the wave-current interaction, and the breaking wave induced longshore current effect on wave transformation is not obvious. |
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