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通过无反射数值波浪水槽研究了周期波浪对浪溅区结构物的冲击作用。控制方程为雷诺时均方程 ,采用k -ε紊流模型及在近壁区应用壁函数。建立了适合VOF方法的水体与结构物接触与分离的数值边界条件及动量方程的对流项采用了三阶迎风差分格式以消除数值粘性的影响。通过对不同波浪参数、结构物尺度、结构物与静水面的距离等情形的数值计算成果的比较分析 ,得到了波浪对结构物底面的冲击压力分布特征 ,讨论了结构物离开水面的距离S等参数对波浪冲击压力的影响 ,通过数模得到了波浪对位于浪溅区结构物底面的波浪冲击压力幅值及沿底面分布的定量结果。
The effect of periodic wave on the structure of the splash zone was studied by a reflection-free numerical wave tank. The governing equation is the Reynolds-averaged equation, using the k-ε turbulence model and the wall function in the near wall. A numerical boundary condition and a convection term of momentum equations that establish the contact and separation of water body and structure for water body and structure are established by the third order upwind difference scheme to eliminate the influence of numerical viscosity. Through the comparison and analysis of numerical calculation results of different wave parameters, structure scale and distance between structures and hydrostatic surface, the distribution of impact pressure on the bottom of structure is obtained, and the distance S from the water surface is discussed The influence of the parameters on the impact pressure of the wave is obtained by numerical simulation. The amplitude of the wave impact pressure and the quantitative results along the bottom distribution of the wave at the bottom of the structure are obtained.