透水柔性平面防浪堤对波浪的绕射

Wave diffraction with permeability flexible thin plate breakwaters

在透水柔性防浪堤与波浪相互作用的数学模型与级数解的基础上，讨论了透水柔性平面防浪堤对波浪的绕射，研究了波浪的反射和投射的变化规律，这在理论上和实用上具有十分重要的意义．

Wave diffraction with permeability flexible, thin plate breakwaters are studied theoretically based on linear wave theory. The fluid motion are idealized as a two dimensional potential flow and the breakwaters are idealized plate of uniform flexural rigidity and uniform mass per unit area. Analytic solutions are obtained based on the eigenfunction expansion of the velocity potential in two fluid domains and continuous tensioned membrane dynamic model. The free surface elevation, hydrodynamic force acting on the breakwater, and the breakwaters motion are determined hydrodynamically. Numerical results are presented to illustrate the effects of the various wave and structural parameters on the hydrodynamic load and interior and exterior wave fields.