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首页> 外文期刊>Journal of Engineering Mechanics >Damping effect on waves propagating past a submerged horizontal plate and a vertical porous wall
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Damping effect on waves propagating past a submerged horizontal plate and a vertical porous wall

机译:对传播通过淹没的水平板和垂直多孔壁的波的阻尼效应

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摘要

A set of analytical solutions for waves propagating past a combined submerged horizontal plate and vertical porous wall breakwater system is presented. The wave damping effect caused by the horizontal plate induced flow constriction is considered in the analysis. The velocity potentials in each fluid domain are derived based on the linear wave theory and the unknown coefficients are determined from the matching conditions using three sets of orthogonal eigenfunctions. Reflection and transmission coefficients are presented to evaluate the performance of the breakwater system. The analytical solutions in terms of the reflection and transmission coefficients as well as the hydrodynamic force on the vertical porous wall are found in good agreement with published laboratory measurements. In comparison with the solutions without taking into account the wave damping effect, the present analytical solutions significantly improve the accuracy of the wave predictions, especially for the reflected waves.
机译:提出了一套通过水下平板和垂直多孔壁防波堤系统传播的波浪的解析解。分析中考虑了由水平板引起的流动收缩引起的波阻尼效应。基于线性波理论推导每个流体域中的速度势,并使用三组正交特征函数从匹配条件中确定未知系数。给出了反射和透射系数,以评估防波堤系统的性能。在反射和透射系数以及垂直多孔壁上的流体动力方面的分析解决方案与已发表的实验室测量结果非常吻合。与不考虑波衰减效应的解决方案相比,本分析解决方案显着提高了波浪预测的准确性,特别是对于反射波。

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