Effects of Obstacles on Deflagration-to-Detonation Transition in Linked Vessels

被引：7

作者：

Yin, Zhonglin ^{[1
]}

Wang, Zhirong ^{[1
]}

Cao, Xingyan ^{[1
]}

Zhen, Yaya ^{[1
]}

Jiang, Kewei ^{[1
]}

Ma, Shichang ^{[1
]}

Gao, Wei ^{[2
]}

机构：

[1] Nanjing Tech Univ, Jiangsu Key Lab Hazardous Chem Safety & Control, Coll Safety Sci & Engn, Nanjing 210009, Peoples R China

[2] Dalian Univ Technol, Sch Chem Engn, Dalian, Peoples R China

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 2022年 / 194卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Deflagration to detonation transition; obstacle number; obstacle position; blockage ratio; linked vessels; FLAME ACCELERATION; GAS;

D O I：

10.1080/00102202.2020.1810679

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

order to study the characteristics and rules of deflagration to detonation transition (DDT) in linked vessels, two typical linked vessels were selected in this paper. The research was focused on the effects of pipe length, obstacle number, obstacle position and obstacle blockage ratio on DDT of methane air mixture in linked vessels. The experimental results showed that the pressure peak and the speed of flame propagation were enhanced by the obstacles. The precursory shock waves and the chemical reaction zone were coupled to propagate and caused the occurrence of DDT. When the obstacles were placed in the linked vessels, the distance of DDT occurrence moved forward. Moreover, with the increase of obstacle number, the induced distance of DDT was reduced. The induced distance of DDT was relatively short when the obstacle position was near the location of the explosion vessel.

引用

页码：1265 / 1281

页数：17

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