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中文摘要：
基于特征函数匹配理论,导出了作用在垂直圆柱浮体上波浪力的计算公式.对于两层流体,除了表面波模态的波浪力外,还有内波模态的波浪力,这与单层流体的情况是不同的.对所建立的求解模型进行了数值计算分析.结果表明,在某个频率范围内,流体的分层效应对垂直圆柱浮体的波浪力有一定影响.
英文摘要：
The hydrodynamic characteristics of a vertically floating cylinder in a two-layer fluid were considered. The computational formulations for the wave forces on the vertically floating cylinder were presented by matching eigen functions of the interior and exterior problems. In addition to the wave forces produced by surface waves, there are wave forces produced by internal waves. This is different from the case of the uniform fluid. Some examples were given, showing that the density stratification has an effect on the wave forces on the vertically floating cylinder over a specific range of frequencies.
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