A simple and easy method which directly determines the calculation parameters of Stokes fifth order wave. is obtained in this paper, by seeking the relation between given calculation parameters and the wave parameters...A simple and easy method which directly determines the calculation parameters of Stokes fifth order wave. is obtained in this paper, by seeking the relation between given calculation parameters and the wave parameters. It overcomes the difficulty in solving the united equations established by the wave height difinition and the dispersion relation by means of the iterating method. In addition, a series of numerical tests are done. The suitable range of Stokes fifith order wave is suggested in view of the stability of calculation parameters and the precision of the results.展开更多
文摘A simple and easy method which directly determines the calculation parameters of Stokes fifth order wave. is obtained in this paper, by seeking the relation between given calculation parameters and the wave parameters. It overcomes the difficulty in solving the united equations established by the wave height difinition and the dispersion relation by means of the iterating method. In addition, a series of numerical tests are done. The suitable range of Stokes fifith order wave is suggested in view of the stability of calculation parameters and the precision of the results.
文摘近年来,数值波浪水槽在海洋工程研究中发挥着越来越为重要的作用,成为了水波动力学研究的焦点之一。为此,基于Navier-Stokes(N-S)方程组,首先完成了二维数值波浪水槽的构建。对于N-S方程,采用FVM(Finite Volume Method)法进行离散求解;在入口边界处,模拟活塞推板运动产生了入射波;同时,利用VOF(Volume of Fluid)法对波浪自由面进行了捕捉;在数值波浪水槽尾部,通过设置人工阻尼区实现了消波。利用该二维数值波浪水槽,对典型非线性二阶Stokes波进行了仿真模拟,通过设置虚拟波高监测仪,获取了非线性二阶Stokes波发生、发展和消亡的全过程。对比校验表明,所有仿真结果均与理论精确解相吻合。
