Experimental investigation on detonation initiation with a transversal flame jet
Experimental investigation on detonation initiation with a transversal flame jet
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横向火焰射流起爆爆轰实验研究
DOI：
10.1134/s001050821302007x
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Q. Zhang
中科院分区：
文献类型：
--
作者：
W. Zhao;Q. Han;Q. Zhang
This paper reports on an investigation of detonation initiation with a transversal flame jet. Series of single-cycle experiments are performed, where stoichiometric propane-oxygen mixtures with nitrogen dilution at atmospheric initial pressure are used, both in the flame sub-chamber with varying configurations and in the test tube 70 mm in diameter and 1550 mm long. The experimental results show that the flame jet orifice diameter slightly affects the detonation initiation sensitivity, and the flame sub-chamber configurations exert a minor effect on the deflagrationto-detonation transition (DDT) distance, but the DDT time decreases as the flame sub-chamber length increases. Conventional spark ignition is investigated as a comparison experiment, and detonation initiation is not observed in mixtures with nitrogen dilution up to 65%.
