中文摘要：

针对前身星模型Ws15M⊙，采用程序WLYW89数值模拟了超新星瞬时爆发过程；数值结果表明，在不增大压强的前提下，适当调节坍缩和反弹阶段的压强梯度，超新星瞬时爆发是可以获得成功的．在有限的引力释放能量的情况下，压强梯度的调整增加了对流传能机制，可以缩短瞬时爆发所用的时间，提高爆发能量，使得瞬时强爆炸能够成功．

英文摘要：

Numerical simulation on the supernova explosion of the presupernova model Ws15M⊙ has been performed using the program WLYW89. It is shown that the supernova prompt explosion may be success by properly adjusting the pressure gradient at the stage of the collapse and the rebound respectively, simultaneously, and not increasing the pressure in the iron core. In the case of insufficient releasing energy by gravity, the adjustment of the pressure gradient has strengthened the mechanism of the transferring energy by convection. This may shorten the time and increase the explosion energy of the supernova explosion. It makes the supernova prompt explosion reality.