孤立波作用下水平板的水动力特性数值研究

Numerical study on the hydrodynamic characteristics of a horizontal plate under a solitary wave

为了研究孤立波对水平板水动力特性的影响,本文使用OpenFOAM®开源软件包对孤立波作用于板式结构物进行了数值模拟。对数值模型进行了验证,通过改变相对净空比、水平板宽度参数进行了数值模拟,讨论了其参数对波浪力、透射系数和反射系数的影响规律。结果表明:板宽和相对净空比参数的变化对水平波浪力的影响不大,对垂直波浪力的影响较为明显,且随着相对净空比的增加,影响变得更加显著;透射系数和反射系数随着板宽和相对净空比的变化皆呈规则性变化。

To study the influence of a solitary wave on the hydrodynamic characteristics of horizontal plates,this paper uses the OpenFOAMopen-source package to simulate the action of a solitary wave on the plate structure.First,the numerical model is verified.Then,a simulation is performed by changing the relative clearance ratio and the width parameter of the horizontal plate.Finally,the influence laws of the parameters on the wave force,transmission coefficient,and reflection coefficient are discussed.The results show that the parameters of plate width and relative clearance ratio have little influence on the horizontal wave force but a more obvious influence on the vertical wave force,and the influence becomes more significant with the increase in the relative clearance ratio.The transmission and reflection coefficients change regularly with the change in plate width and relative clearance ratio.