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该文基于椭圆余弦波绕射理论,应用特征函数展开法,推导了浅水波对圆弧型贯底式多孔介质防波堤绕射的波势解,并据此解析计算了作用于防波堤的水平波浪载荷与浅水波波面分布。计算结果表明:浅水波入射角与非线性影响参数、海况条件以及防波堤几何条件等因素的相对变化对波浪作用均存在一定的影响,结构透空可以明显减弱防波堤所受波浪作用。与微幅波理论对比可知:在一定浅水条件下采用椭圆余弦波一阶分量模型所计算的最大无量纲波浪力、力矩和波面分布值均明显高于微幅波理论的对应估值,反映了水波非线性因素的影响效应。
Based on the elliptic cosine wave diffraction theory, the eigenfunction expansion method is used to derive the wave potential solutions of shallow water waves to the circular arc type through porous media breakwater diffraction. Based on this, the horizontal wave loads acting on the breakwater are calculated and calculated. With the shallow wave wave surface distribution. The calculation results show that the relative changes of shallow water incident angles and nonlinear parameters, sea conditions and breakwater geometrical conditions all have some influence on the wave effect. The structural see-through can obviously reduce the wave effect of breakwaters. Comparing with the theory of the micro-amplitude wave, the maximum dimensionless wave force, moment and wavefront distribution calculated by the first order component model of elliptic cosine wave under certain shallow water conditions are obviously higher than the corresponding estimates of the micro-wave theory, reflecting Effect of water wave non-linear factors.