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Building of Numerical Wave Tank and 2nd Stokes Wave Simulation

HUANG Hua1,2,DENG Bing1,CHEN Yu-song1,LIU Juan1(1.The Institute of Applied Meteorology,Beijing 100029,China; 2.The Atmosphere Science Postdoctoral Station,PLA University of Science and Technology,Nanjing 211101,China)  
In recent years,the numerical wave tanks are widely applied in the study of ocean engineering problems,and become the focus of water wave mechanics research.Based on Navier-Stokes(N-S) equations,a 2D numerical wave tank was built.The N-S governing equations were discretized by Finite Volume Method(FVM),the incident wave was generated from the boundary by simulating piston wave-maker motions,Volume of Fluid(VOF) method was used to catch the nonlinear free surface,and the outgoing waves were dissipated in an artificial damping zone at the rear part of the wave tank.Then,typical nonlinear 2nd Stokes wave was simulated in this 2D numerical wave tank,and its arising,developing and dissipating were committed to memory of virtual wave height monitors.Comparison and validation show that,all the simulation results match theoretical results well.
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