炸药爆轰环境中铝粉非等温燃烧模型

Non⁃isothermal Combustion Model for Aluminum Powder in Explosive Detonation Environment

为研究铝粉在爆轰环境中的燃烧特性,基于爆轰环境中铝粉燃烧模型,综合考虑了爆轰产物气体组分和爆轰环境体系温度对铝粉燃烧释能过程的影响,建立了爆轰环境中铝粉非等温燃烧模型,提出了包括铝粉燃烧过程、爆轰产物气体组分和爆轰环境体系温度在内的爆轰环境铝粉非等温燃烧控制方程,并通过激光诱导击穿光谱实验进行了验证。结果表明,铝粉非等温燃烧模型控制方程的计算值与激光诱导击穿光谱实验值的偏差在12%以内,验证了理论模型计算的准确性,获得了铝粉粒度和铝氧比对炸药中铝粉燃烧特性的影响规律。

In order to study the combustion characteristics of aluminum powder in the detonation environment,based on the combustion model of aluminum powder in the detonation environment,the non-isothermal combustion model of aluminum powder in the detonation environment was established by comprehensively considering the effects of gas components of the deto-nation products and the temperature of the detonation environment system on the combustion and energy release process of alu-minum powder.The non-isothermal combustion control equations of aluminum powder in the detonation environment,includ-ing the combustion process of aluminum powder,the gas components of the detonation products and the temperature of the det-onation environment system,were proposed.And it was verified by laser induced breakdown spectroscopy experiments.The re-sults show that the deviation between the calculated values of the non-isothermal combustion model control equation of alumi-num powder and the experimental values of laser induced breakdown spectroscopy is within 12%,which verifies the accuracy of the theoretical model calculation.The laws of the influence of aluminum powder particle size and aluminum-oxygen ratio on the combustion characteristics of aluminum powder in explosives were obtained.