Turbulent jet initiation of detonation in hydrogen-air mixtures

被引：27
|
作者：
Dorofeev, SB
Bezmelnitsin, AV
Sidorov, VP
Yankin, JG
Matsukov, ID
机构：
来源：
SHOCK WAVES | 1996年 / 6卷 / 02期
关键词：
detonation; initiation; turbulent jet;
D O I：
10.1007/BF02515190
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Large scale experiments (50 m(3)) have been carried out on the initiation of detonation by means of a jet of hot combustion products. The effects of hydrogen concentration (18 - 30% vol.), jet orifice diameter (100-400 mm), and the mixture composition in constant volume explosion chamber (25-50%) were investigated. Both high enough hydrogen concentration and large enough jet size are necessary for detonation initiation. The minimum values are within the ranges of 20 to 25% vol. H-2, and of 100 to 200 mm correspondingly. A minimum ratio of jet size and mixture cell width 12-13 is required for detonation initiation.
引用
收藏
页码：73 / 78
页数：6
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