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Experimental Research of Deflagration to Detonation Transition of Epoxypropane-Aluminum-Air Mixtures in Large-Scale Tube
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Mo CHEN, Chun-Hua BAI, Qing-Ming LIU
Chinese Journal of High Pressure Physics | 2011, 25(4) : 359 - 364
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Chinese Journal of High Pressure Physics | 2011, 25(4): 359-364
Experimental Research of Deflagration to Detonation Transition of Epoxypropane-Aluminum-Air Mixtures in Large-Scale Tube
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Mo CHEN, Chun-Hua BAI, Qing-Ming LIU
Affiliations
  • State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Published: 2011-08-15
Outline
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Motivated by the current interest in the mechanism of the deflagration to detonation transition (DDT), the DDT experiments of epoxypropane-air mixture and epoxypropane-aluminum-air mixture are carried out by a large-scale tube (32.4 m long and 0.199 inner diameter). The processes of DDT in multi-phase clouds are analyzed, and the mixtures with different concentrations are compared. The self-sustained detonation waves are formed in the epoxypropane-air mixture with epoxypropane concentration of 513 g/m3 and epoxypropane-aluminum-air mixture with epoxypropane and aluminum concentrations of 237 and 643 g/m3, and moreover the cell size of the detonation are 0.28 and 0.5 m, respectively.

deflagration to detonation transition  /  weak ignition  /  epoxypropane  /  aluminum  /  self-sustained
陈默, 白春华, 刘庆明. 大型水平管道中环氧丙烷-铝粉-空气混和物爆燃转爆轰的实验研究. 高压物理学报, 2011 , 25 (4) : 359 -364 .
Mo CHEN, Chun-Hua BAI, Qing-Ming LIU. Experimental Research of Deflagration to Detonation Transition of Epoxypropane-Aluminum-Air Mixtures in Large-Scale Tube[J]. Chinese Journal of High Pressure Physics, 2011 , 25 (4) : 359 -364 .
Year 2011 volume 25 Issue 4
22
5
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  • Receive Date:2010-03-22
  • Online Date:2026-11-02
  • Published:2011-08-15
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  • Received:2010-03-22
  • Revised:2010-05-06
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    State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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