Numerical and Experimental Analysis of Nonlincar Bow and Stern Waves of A Two-Dimensional Body (Third Report) : Numerical Simulation Method for Breaking Waves

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A numerical technique to simulate breaking waves in front of an advancing floating body is developed. It is based on the TUMMAC-V method of the first report and the computational procedure for the wave motion near the free surface is remarkably modified. The method simulates the time-evolutional process of nonlinear bow waves from the steepening to the generation of necklace and horseshoe vortices. The simulated results of spilling breakers are in very good qualitative agreement with the experiment in terms of the dynamic motion of free surface flow, the steep velocity slope, the intense vortical motion and the high pressure due to breaking. The complicated evolution of ship waves with both dispersion and dissipation is also discussed.
社団法人日本船舶海洋工学会の論文