Twin experiments show that the adjoint method can inverse the prescribed bottomfriction coefficients perfectly.
理想实验的结果表明，利用伴随法反演底摩擦系数是合理且有效的。
2
In the traditional numerical simulation, the bottomfriction coefficient has been treated as a constant or different constant in different region.
在传统的数值模拟工作中，底摩擦系数被当作一个常数或者在不同的海域取不同的常数。
3
Based on this model, we analyze the effects of the change of wave height, wave's incident Angle, bottomfriction coefficient and topography on rip current, and some useful conclusions are reached.