中文摘要：

有在一个限制空格的一个事件冲击波和它的反映的冲击波的球形的火焰的相互作用用三维的反应海军司烧方程被调查，与放在在反映的冲击波的经过以后的火焰失真和爆炸开始上的混合的化学反应的效果上的强调。爆炸开始的时间空间的特征高度取决于混合的化学反应，这被显示出。当化学反应提高时，火焰能严重地被弄歪形成反应吃惊分叉结构，爆炸在不同三维的空间地点开始。而且，爆炸开始将在更多的提高的反应的混合物更早发生。结果表明爆炸在被 shock-detonation-transition 机制开始的未燃的区域从热点产生。

英文摘要：

The interactions of a spherical flame with an incident shock wave and its reflected shock wave in a confined space were investigated using the three-dimensional reactive Navier-Stokes equations, with emphasis placed on the effect of chemical reactivity of mixture on the flame distortion and detonation initiation after the passage of the reflected shock wave. It is shown that the spatio-temporal characteristics of detonation initiation depend highly on the chemi- cal reactivity of the mixture. When the chemical reactivity enhances, the flame can be severely distorted to form a reactive shock bifurcation structure with detonations initiating at different three-dimensional spatial locations. Moreover, the detonation initiation would occur earlier in a mixture of more enhanced reactivity. The results reveal that the detona- tions arise from hot spots in the unburned region which are initiated by the shock-detonation-transition mechanism.