Effect of Pressure Gradient on the Prompt Explosion Energy of a Supernova Progenitor Ws12M_

The supernova prompt explosion of a progenitor model Ws12M-⊙ is simulated.The effect of pressure gradient on the prompt explosion energy of supernova is discussed.Numerical analysis indicates that the explosion energy is sensitive to the increasing of pressure gradient which has minor influence on the pressure. At collapse,bounce or propagation stage,the increasing of pressure gradient can improve the explosion energy obviously.