The motion can be of large amplitude, and the freesurfacecondition is linear.
运动可以是大振幅的，但自由面条件是线性的。
2
The nonlinear freesurface boundary condition is considered and the hydrodynamics forces of the hydrofoil near the freesurface are calculated by the submerged vortex lattice method.
考虑到非线性的自由液面边界条件，用下潜涡环栅格法求解水翼绕流问题。
3
In this program, free water surfacecondition and boundary condition on seabed and bank are satisfied by means of images.