爆炸与冲击2017，Vol.37Issue(4)：741-747,7.DOI:10.11883/1001-1455(2017)04-0741-07
激波诱导火焰失稳与爆轰的条件研究
Conditions for shock wave induced flame instability and detonation
摘要
Abstract
A computational study of the interaction between shock waves and a spherical flame was carried out using the ninth-order WENO and the tenth-order central difference schemes,and the influence of shock intensity and flame size on the interaction process was investigated.It can be found from the results of our study that the increase of the shock intensity and the flame size can both induce detonation in the flow field,but the influence of the shock intensity is relatively stronger.Further,the detonation induced by shock wave can lead to quick flame expansion and increase its heat release rate,thereby affecting the combustion characteristics.Besides,the detonation wave will quickly burn out the combustible gas,merge the previously existing reflected shock waves in the propagation process,and form local high pressure zones,which can significantly alter the flow field structure.关键词
激波/火焰/爆轰/流场结构Key words
shock wave/flame/detonation/flow field structure分类
数理科学引用本文复制引用
朱跃进,于蕾,张彭岗,潘振华,潘剑锋,董刚..激波诱导火焰失稳与爆轰的条件研究[J].爆炸与冲击,2017,37(4):741-747,7.基金项目
国家自然科学基金项目(11402102,11372140) （11402102,11372140）
江苏省自然科学基金青年项目(BK20140524) （BK20140524）
江苏省博士后基金项目(1402013B) （1402013B）
江苏大学高级专业人才科研启动基金项目(14JDG031) （14JDG031）
