Geometry effect in reactive shock-elliptic bubble interactions
Geometry effect in reactive shock-elliptic bubble interactions
复制标题
DOI：
10.1007/s10409-021-01132-9
复制
发表时间：
2021-08
影响因子：
3.5
通讯作者：
Dongdong Li;Ge Wang;Bin Zhang;Zhi-Bang Wang;B. Guan
中科院分区：
文献类型：
--
作者：
Dongdong Li;Ge Wang;Bin Zhang;Zhi-Bang Wang;B. Guan
对反应椭圆预混气泡中冲击引起的点火和爆轰波传播进行了数值研究。密切关注气泡几何形状对点火模式的影响以及随后的气泡行为。检查了五个具有不同纵横比的椭圆形气泡。根据数值结果，在相同的入射冲击强度下确定了三种典型的点火模式，并解释了潜在的机制。点火模式的差异表明，与惰性激波-气泡相互作用相比，反应性激波-气泡相互作用（RSBI）中的几何效应具有更多的影响。除了纵横比之外，点火位置和从点火点到最近/最远气泡表面的距离也应被视为 RSBI 中几何效应的元素。图形摘要在目前对反应激波-椭圆气泡相互作用的研究中，确定了三种典型的点火模式。点火模式的差异表明，与惰性激波-气泡相互作用相比，反应性激波-气泡相互作用（RSBI）中的几何效应具有更多的影响。除了长宽比之外，点火位置以及点火点到最近/最远气泡表面的距离也应被视为RSBI中几何效应的要素。
The shock-induced ignition and detonation wave propagation in reactive elliptic premixed bubbles are numerically studied. Close attention is paid to the bubble geometry effect on the ignition pattern and the ensuing bubble behavior. Five elliptic bubbles with different aspect ratios are examined. According to the numerical results, three typical ignition patterns are identified under the same incident shock strength and the underlying mechanisms are interpreted. The difference in ignition pattern shows that, comparing with the inert shock-bubble interaction, the geometry effect in reactive shock-bubble interaction (RSBI) has more implications. In addition to the aspect ratio, the ignition location and the distance from the ignition spot to the nearest/farthest bubble surface should also be considered as elements of the geometry effect in RSBI.Graphical abstractIn the present investigation on reactive shock-elliptic bubble interactions, three typical ignition patterns are identified. The difference in ignition pattern shows that, comparing with the inert shock-bubble interaction, the geometry effect in reactive shock-bubble interaction (RSBI) has more implications. In addition to the aspect ratio, the ignition location and the distance from the ignition spot to the nearest/farthest bubble surface should also be considered as elements of the geometry effect in RSBI.