摘要
针对气体通过均匀多孔介质、非均匀多孔介质和贯通裂缝泄漏三种机制,研究地下爆炸缩比实验气体泄漏时间和份额的规律.结果显示,对于相同介质中的缩比化学爆炸实验,气体泄漏时间与药量的三分之二次方成正比,不同药量实验的最终泄漏份额基本一致.实验室缩比化学爆炸实验气体泄漏时间关系的监测结果与理论分析基本一致.
To forecast gas leakage of a planned experiment, harmful gas leaking time from a scaled underground explosion cavity and ratio of leaked harmful gas to entire harmful gas are studied with theoretical analysis and numerical simulation. The leakage mechanisms are ： （ 1 ） gas leaks through uniform porous media, （2） gas leaks through non-uniform porous media, （ 3 ） gas leaks through fractures. It shows that leakage time is proportional to two thirds power of explosive amount in scaled underground explosions. Percentages of leaked gas are approximately same for scaled explosions in same media. Theoretical results about leakage time is basically in line with scaled experimental results.
出处
《计算物理》
CSCD
北大核心
2013年第2期209-213,共5页
Chinese Journal of Computational Physics
关键词
地下爆炸
缩比实验
气体泄漏
underground explosion
scaled experiment
gas leakage
