N2O4／UDMH火球特性的实验与理论研究

本文对液体推进剂四氧化二氮／偏二甲肼（Ｎ２Ｏ４／ＵＤＭＨ）爆炸热过程特性进行了实验与理论研究。研究结果显示出了火球尺寸变化、火球持续时间、火球内部温度、火球辐射热流传递过程等热过程特性参数随推进剂重量、时间和空间位置的变化规律。理论预测结果与实验测量结果相比符合较好，表明理论预测模型的正确性。本文还讨论了火球升离地面的临界条件、高空环境对火球直径的影响和火球随风漂移等三方面的问题。

EXPERIMENT AND THEORETICAL INVESTIGATION ON N 2O 4/UDMH PROPELLANT FIREBALL CHARACTERISTIC

In this paper,the experimental and theoretical study on fireball heat processes characteristic of N 2O 4/UDMH liquid propellant explosive provesses has been performed The research results show the variation of fireball size,fireball radiant heat flux with the propellant mass,time and space By comparison the theoretical predicted results are in agreement with experimental results Using these research results it can be determined that the fireball characteristic of a heavy launch vehicle In this paper it is also discussed that the critical condition of fireball lift off,effect of high altitude environment on fireball characteristic and fireball drifting