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中文摘要：
应用经CSPM法和黎曼解修正后的光滑粒子流体动力学（SPH）方法,建立了主动吸收无反射数值波浪水槽,研究波浪作用下多孔介质结构的水动力特性。流体运动控制方程采用N-S方程,多孔渗水结构内流体的运动控制方程考虑渗流力的影响。数值计算结果给出了水槽内不同位置测点的波面历时曲线和越浪量随时间变化曲线,并同试验结果和Philip Liu的数值计算结果进行了比较。并对一个波浪周期内斜坡堤多孔介质结构内外的速度场和压力分布进行了讨论分析。计算分析表明,数值计算波面较Philip Liu的计算结果与试验结果吻合更好。说明应用SPH方法建立的二维数学模型能够较好地模拟破碎波在多孔渗水斜坡上的爬坡和越浪。
英文摘要：
An active absorbing wave flume was built based on Smoothed Hydrodynamic Particles（SPH） method which had been correc- ted using CSPM method and Riemann solver to study the characteristics of water dynamic of wave interaction with porous structures. N- S equations were adopted as governing equations. The influence of seepage force in governing equations of porous structures was consid- ered. Comparisons of computed water surface elevations at different points and overtopping load with experiment data and the numerical resuhs of Philip Liu were presented. The discussions and analyses of the velocity and pressure in and out of the porous structure during one period were made. The calculation and analyses results indicate that water surface profiles of SPH are in better agreement with ex- periment data than the numerical results of Philip Liu. It can come to a conclusion that the model based on SPH can predict breaking wave running up and overtopping on porous breakwaters.
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