高能炸药爆轰波反应区流场的拉格朗日分析方法

LAGRANGIAN ANALYSIS OF FLOW FIELD IN DETONATION REACTION ZONE OF HIGH EXPLOSIVES

给出了一种简单的、对高能炸药爆轰反应区流场进行拉格朗日分析的方法。若已知未反应炸药和反应产物的状态方程，采用适当假设，我们可以在不知道反应速率函数的情况下得到爆轰反应区中的关系ｐ（λ）和ｕ（λ）等。根据这些关系及爆轰反应区中拉氏量计的实验结果ｐ（ｔ）［或ｕ（ｔ）］，通过插值或数据拟合可以得到爆轰反应区中的反应流场。我们将此方法应用于ＰＢＸ－９４０４炸药。

A simple Lagrangian analysis method to give the reaction flow field in detonation reaction zone of high explosives is proposed in this paper.With knowing the equations of state of the unreacted explosive and the reaction products,as well as with some appropriate assumptions,we could obtaine the relationship of p(λ) and u(λ) ,etc across the detonation reaction zone without specifying the reaction rate function(where, p is the pressure, u is the particle velocity, λ is the reaction progress variable).According to these relations and the experimental results about p(λ) (or u(λ) )across the detonation reaction zone,the reaction flow field across the detonation reaction zone could be obtained by means of interpolation or data fit.We used the methed mentioned above to get the reaction flow field across the reaction zone of PBX 9404.