摘要
以自制WRe5/26热电偶作为效应物,采用接触测温法测试了几种温压炸药的爆炸热作用,并进行了传热学分析。结果表明,使用热电偶能够满足实验要求,效应物的热响应温度与爆炸产物温度及其换热系数密切相关,换热系数越大,效应物表面温度接近爆炸产物温度的程度越快。爆炸产物对效应物的热作用随爆心距离大致呈S型衰减。实验中距爆心较近处热流密度的数量级为106W/m2。
The WRe5/26 thermocouple made by ourselves was taken as the analogue which was analyzed by heat transfer theory. The thermal effects of some kinds of thermo-baric explosives were tested by contact thermometry. The results show that the thermocouple could satisfy the experiment requirement. The analoguels thermal response temperature synchronously related to the detonation product＇s temperature and the convection coefficient. The analoguels surface temperature could approach the detonation productts temperature quickly along with the convection coefficient increase. The thermal effect declined basically as sigmoid shape with the distance between the analogue and explosion centre. The heat flux density was about 10^6 W/m^2in vicinity.
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2010年第4期49-52,共4页
Chinese Journal of Explosives & Propellants
基金
武器装备预研基金项目
关键词
爆炸力学
非理想炸药
热电偶
接触测温法
热流密度
explosion mechanics
non-ideal explosive
thermocouple
contact thermometry
heat flux
