摘要
建立了一维反应两相流模型，对高能固体推进剂多孔床燃烧转爆轰（DDT）过程进行了数值模拟。当装填密度为83．5％TMD时，计算表明，药床着火后燃烧阵面前形成一致密波，使阵面前药床受到压缩，并逐渐形成完全压实区。压实区前沿压力达1．8GPa时，将引起药床第二次点火，且很快过渡到稳态爆轰。
An one-dimensional, two-phase flow model is established. The process of DDT in a 83. 5% TMD propellant porous bed is analyzed with this model. It is shown that a compaction wave is formed ahead of the flame, which compacts the porous bed until the bed is completely collapsed. When the leading pressure of the pore-collapsed zone is beyond 1. 8GPa, the bed is ignited and steady-state detonation occurs quickly.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
1997年第1期46-51,共6页
Acta Armamentarii
关键词
固体推进剂
燃烧
爆轰
数值模拟
compaction wave, deflagration to detonation transition (DDT), shock wave
