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荣喜近岸区波流耦合作用下的流场模拟
引用本文:李昌良,梁丙臣,谢媛媛.荣喜近岸区波流耦合作用下的流场模拟[J].海洋科学,2009,33(7):99-106.
作者姓名:李昌良  梁丙臣  谢媛媛
作者单位:1. 中国石油大学,石油工程学院,山东,青岛,266555;水力学与山区河流开发保护国家重点实验室,四川大学,四川,成都,610065
2. 中国海洋大学,工程学院,山东,青岛,266100
基金项目:国家重点基础研究发展规划(973计划),国家杰出青年科学基金 
摘    要:一方面将波浪对底部剪切应力、表面拖曳力系数,辐射应力以及表面混合长度的影响引入至COHERENS.另一方面又将水动力模型COHERENS和第三代波浪模型SWAN耦合,使两模型能够随时互相交换水流、水位以及波浪信息,最终获得波流耦合模型COHERENS-SWAN并将其应用于荣喜近岸区波流共同存在情况下的波流作用模拟研究.计算所得的流速、流向和水位与实测数据吻合较好.

关 键 词:荣喜近岸区  波生流  波流耦合  辐射应力
收稿时间:9/9/2007 12:00:00 AM
修稿时间:5/4/2009 12:00:00 AM

Numerical simulation of wave-tide induced longshore current in Rongxi
LI Chang-liang,LIANG Bing-chen and XIE Yuan-yuan.Numerical simulation of wave-tide induced longshore current in Rongxi[J].Marine Sciences,2009,33(7):99-106.
Authors:LI Chang-liang  LIANG Bing-chen and XIE Yuan-yuan
Abstract:Wave-tide induced longshore current in Rongxi area will be discussed in the potential paper. A hydrodynamic model COHERENS is coupled with the third generation wave model SWAN. Inside COHERENS, SWAN is regarded as a subroutine and it gets time- and space-varying current velocity and surface elevation from COHERENS. COHERENS gets time- and space-varying wave relevant parameters calculated by SWAN. Wave-enhanced bottom stress, wave dependent surface drag coefficient and radiation stress are introduced to COHERENS. Then a fully coupled hydrodynamic-wave model OHERENS-SWAN accounting for interaction between wave and current is obtained and adopted to simulate longshore current in Rongxi area. Generally, the values of time series of current velocity, current direction and water level have a good agreement with the observed data.
Keywords:Rongxi  wave induced current  wave and current coupling  radiation stress
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