Learning Forum

[ilhamkurniamubaraq]

I made a fast ship simulation in freesurface with overset grid, I want to know the effect of freesurface so I simulated doublebody in the same simulation settings as freesurface. but the ship's resistance actually jumped far from the freesurface simulation especially on pressure resistance, what setup is wrong with my simulation, is there anything that is set differently from the freesurface simulation?

[KimberlyCannon899]

 

@Geometry Dash Lite In freesurface simulation, you need to set up boundary conditions (BC) correctly for the water surface, including: pressure conditions at the free surface, wave drainage boundary, relative motion conditions of the hull and the water surface. If the same is not set up in the double hull simulation, the drag will be greatly affected.