Propagation Mechanism of Cylindrical Cellular Detonation
HAN Wen-Hu, WANG Cheng** , NING Jian-Guo
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081
Abstract ：We investigate the evolution of cylindrical cellular detonation with different instabilities. The numerical results show that with decreasing initial temperature, detonation becomes more unstable and the cells of the cylindrical detonation tend to be irregular. For stable detonation, a divergence of cylindrical detonation cells is formed eventually due to detonation instability resulting from a curved detonation front. For mildly unstable detonation, local overdriven detonation occurs. The detonation cell diverges and its size decreases. For highly unstable detonation, locally driven detonation is more obvious and the front is highly wrinkled. As a result, the diverging cylindrical detonation cell becomes highly irregular.
收稿日期: 2012-04-01
出版日期: 2012-10-01
:
82.40.Fp
(Shock wave initiated reactions, high-pressure chemistry)
47.40.Nm
(Shock wave interactions and shock effects)
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2012, Vol. 29 
