| TANG Jun,LYU Yigang,SHEN Yongming. 2014. Numerical study on water waves and wave-induced longshore currents in Obaköy coastal water. Acta Oceanologica Sinica, 33(9):40－46 |
| Numerical study on water waves and wave-induced longshore currents in Obaköy coastal water |
| Obakoy 海岸波浪及波生沿岸流的数值模拟研究 |
| Received:October 11, 2013 Revised:January 24, 2014 |
| DOI：10.1007/s13131-014-0515-5 |
| Key words:coast hydrodynamics water wave mild-slope equation wave-induced currents numerical modeling |
| 中文关键词: 海岸水动力 波浪 缓坡方程 波生流 数值模拟 |
| 基金项目:The National Basic Research Program of China under contract No. 2013CB430403; the National Natural Science Foundation of China under contract No. 51179025; the Open Foundation of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering under contract No. 2013491511; the Open Foundation of State Key Laboratory of Ocean Engineering under contract No. 1305 |
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| Abstract: |
| In this paper, the water waves and wave-induced longshore currents in Obaköy coastal water which is located at the Mediterranean coast of Turkey were numerically studied. The numerical model is based on the parabolic mild-slope equation for coastal water waves and the nonlinear shallow water equation for the wave-induced currents. The wave transformation under the effects of shoaling, refraction, diffraction and breaking is considered, and the wave provides radiation stresses for driving currents in the model. The numerical results for the water wave-induced longshore currents were validated by the measured data to demonstrate the efficiency of the numerical model. Then the water waves and longshore currents induced by the waves from main directions were numerically simulated and analyzed based on the numerical results. The numerical results show that the movement of the longshore currents was different while the wave propagated to a coastal zone from different directions. |
| 中文摘要: |
| 本文数值模拟研究了土耳其Mediterranean海岸Obakoy 水域的波浪和波生沿岸流。数值模型基于近岸波浪的抛物型缓坡方程和波生流的非线性浅水方程建立。模型考虑了波浪传播中的浅化、折射、绕射及破碎等效应，由波浪辐射应力为水流提供驱动力。结合实测波生沿岸流数据对数值模型有效性进行了验证。在此基础上，数值模拟分析了波浪由主传播方向传向岸边时形成的波浪场和波生流。数值模拟结果表明，当波浪从不同方向传向岸边破碎后产生的沿岸流运动有所不同。 |
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