摘要
建立了超声波清洗RDX过程中空泡溃灭过程的数值模型,并从微观角度进行了理论分析,研究了空泡溃灭产生的高温、冲击波和瞬间能量释放等潜在的引爆风险。结果表明,空泡存在空间小,存在时间极短(10-9s量级),空泡溃灭过程中脉冲温度虽高,但并不满足RDX的起爆条件;脉冲压力虽高,但冲击波在水中迅速衰减,热量会迅速被水吸收;理论计算获得的空泡溃灭能量比RDX的最小引燃能量小几个数量级。超声清洗技术用于RDX颗粒的清洗是安全的。
A numerical simulation model for the collapse of cavitation bubble in the process of RDX ultrasonic washing was established and theoretical analysis was performed from the microscopic point of view.Some potential initiation risks of bubble collapse such as high temperature,shock wave and instantaneous energy release were studied.The results show that the existence space of the bubble is small and the lived time is very short(10-9s magnitude).In the collapse process of bubble,the pulse temperature is high but does not meet the initiation conditions;though the pulse pressure is high,the shock wave decays rapidly in water,and the heat will be quickly absorbed by water;the bubble collapse energy obtained by theoretical calculation is several orders of magnitude smaller than the minimum ignition energy of RDX.The ultrasonic washing technology used to clean RDX particles is safe.
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2017年第1期45-48,共4页
Chinese Journal of Explosives & Propellants
基金
基础产品创新火炸药专项
