中文摘要：

波流共存时会产生复杂的非线性相互作用，其联合作用比单纯的波浪或单纯的海流问题要复杂很多．基于不可压缩流体N—S方程建立数学模型，VOF法追踪自由液面，通过在动量方程中添加源项实现阻尼消波，利用商业软件平台FLUENT加载UDF进行二次开发，模拟了规则波与均匀流以及规则波与剪切流的波流数值水池．分析了均匀流与波浪的相互作用，得到了波流同向、波形变长、波幅降低、波流相向则影响相异等结论．探讨了剪切流对波浪的影响，并对计算结果进行了函数拟合．

英文摘要：

Coexistence of wave and current generates a complex nonlinear interaction, which is much more com- plex than pure wave problems or pure current problems. Based on the incompressible fluid N-S equation, a math- ematical model was built, adopt VOF method to track the free surface, add source terms in the momentum equa- tion to make wave damp, and use software platform FLUENT and UDF programs to simulate the wave-uniform current as well as the wave-shear flow numeric tanks. The interaction of uniform current and wave is analyzed; when the current and the wave is in the same direction, the waveform becomes longer, the wave amplitude low- er, and its impacts will be opposite in a contrary condition. Besides, the paper explores the effects of shear flow on the wave, and gives the fitting functions to the result.