爆轰模型熵问题的探讨

An Investigation on the Entropy Argument in Detonation Models

爆轰模型过程终点熵最低的问题长时间困扰着爆轰科学。牛顿力学对于时间t→-t反演不变,忽略热力学而只用力学方法研究不可逆爆轰过程可能产生不合理的结果。CJ和ZND模型中的有序假设,即爆轰产物粒子朝着同一方向作有序运动的假设,决定了终点熵最低和不处于热力学平衡态。把CJ和ZND模型的某些结论绝对化,阻碍建立熵最高的爆轰模型。

Detonation science has been annoyed for a long time with the argument that the entropy has a minimum at the process end of detonation models.Neglecting thermodynamics,Newton mechanics that is invariant for the substitution t→-t may create thermodynamic mistake in describing detonation phenomena.The order assumption in CJ and ZND models,which considers all particles of detonation products march orderly in one direction,implies low entropy and thermodynamic non-equilibrium.(Overstating) CJ and ZND model,or even treating them as the objective reality of detonation process (itself) hinders the development of detonation science.