Successive positions of the wave front are then given by the envelopes of the secondary waves. 因此波前的相继位置即为次波的包络面。
Furthermore, the non-dimensional propagation speed of an ISW declines and the dissipation of wave energy increases as the blockage parameter increases. 随无因次障碍参数的增大，无因次波速减小，而内波的能量消散增大。
