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 program is utilized to calculate soil rocks dam freesurface position variation and pore-water pressure distribution condition with time when the up water level position changed.
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.