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中文摘要：
基于光滑粒子流体动力学（SPH）方法的二维数值波浪水槽模拟了规则波对透空式结构物的冲击作用。通过黎曼解和CSPM相结合的方法对连续方程和动量方程进行了修正。对造波边界采用虚粒子法模拟。提出了一种耦合计算方法来消除造波边界附近的压力波动现象,在结构物边界处设置了适合的冲击边界条件。应用修正的SPH模型模拟了规则波对浪溅区结构物的冲击作用,给出了结构物附近流场和压力场的变化特征,并应用物理模型试验结果对数值模型进行了验证。
英文摘要：
A two-dimensional numerical flume is presented to investigate the regular wave slamming on an open-piled structure using the corrected SPH method.The model employs CSPM and Riemann solution to discretize the Navier-Stokes equations.Solid boundaries are simulated by wall particles.The pressures of these dummy particles are determined by a coupling approach,which can keep the pressure field more stable near the boundaries.A new impacting boundary condition is proposed to track the hydrodynamic characteristics around the structure.The improved SPH model is employed to simulate the regular wave impacting the open-piled structure in the splash zone.The main features of the velocity and pressure fields near the structure are presented.And the model is validated against the experimental data and a good agreement is observed.
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