摘要
把波浪场与可渗潜堤内部的孔隙流场作为一个整体问题,从Navier-Stokes方程出发,采用k-ε模型来封闭雷诺方程,作为波浪场的控制方程,以Forchheimer方程作为孔隙流的控制方程,用VOF方法跟踪自由表面,应用施主与受主单元模型求解流体体积函数F的输运方程。以椭圆余弦波为入射波,数值模拟了椭圆余弦波在可渗潜堤前后的波面变化过程,并得到了潜堤内部孔隙流压力的变化结果。
This paper presents a numerical model for simulating nonlinear wave interaction with submerged porous breakwater. In the model, the wave field outside the submerged porous breakwater and the flow inside it are taken into account as a whole. The model calculates the wave field outside the submerged porous breakwater based on the Reynolds Navier-Stokes equation and k-ε model. The flow in the submerged porous breakwater is described by the Forcheimer equation. The VOF method is adopted to deal with free surface. The governing equation for the volume of fluid is solved by donor-acceptor method. In the paper, cosine wave is used and wave surface change along the submerged porous breakwater and the pressure inside it are reproduced by the numerical simulation.
出处
《水运工程》
北大核心
2005年第3期8-12,共5页
Port & Waterway Engineering
关键词
非线性波
可渗潜堤
数值模拟
VOF方法
nonlinear wave
submerged porous breakwater
numerical simulation
VOF method
