摘要
以圆柱形金属/炸药结构为对象,考虑存在切向气流的情形,数值模拟激光辐照温度场分布。通过有限元的方法,得到温度场的数值模拟结果,分析气流速率对温度场分布以及炸药热爆炸的影响。分析结果表明:切向气流对激光辐照过程有冷却作用,气流速率越大,冷却效果越明显,对应炸药点温度越低,越不利于炸药的热起爆。
The three-dimensional temperature field of a columniform metal/explosive structure ir-radiated by continuous laser with tangential airflow is researched .Numerical result of temperature field is obtained by the finite-element method .The influence of airflow velocity to temperature field and thermal explosion is analyzed .The analysis results show that the airflow had cooling effect on the process of laser irradiating .When airflow velocity is greater ,the cooling effect is more obvious and explosion of the explosive becomes more difficult .
出处
《装备学院学报》
2013年第5期131-135,共5页
Journal of Equipment Academy
关键词
激光辐照
切向气流
金属
炸药结构
温度场
热爆炸
laser irradiating
tangential airflow
metal/explosive structure
temperature field
thermal explosion
