Quantitative experimental study on detonation instability of multi-component

被引：0

作者：

Zhao, Huanjuan ^{[1
,2
]}

Bao, Yingxin ^{[1
]}

Yu, Kang ^{[2
]}

Liu, Jing ^{[1
]}

Qian, Xinming ^{[3
]}

机构：

[1] College of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing

[2] State Key Laboratory of Chemical Safety, SINOPEC Research Institute of Safety Engineering Co., Ltd., Shandong, Qingdao

[3] State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing

来源：

Huagong Xuebao/CIESC Journal | 2024年 / 75卷

关键词：

detonation; hydrogen; instability; methane; multi-component; reaction kinetics;

D O I：

10.11949/0438-1157.20240717

中图分类号：

学科分类号：

摘要：

The detonation instability of two multi-component components with different C/H ratios is analyzed. Detonation experiments were carried out in a D=80 mm tube to analyze the characteristics of detonation velocity and cell structure changes of the multi-component components. The influence of hydrogen partial pressure on the instability of multi-component detonation was analyzed from the angle of three-wave point trajectory spacing, pitch and chemical reaction process. It is found that the detonation velocity of multi-component #1 is similar to that of hydrogen premixed gas, although it fluctuates, it is generally stable, and is always stable above 0.95VCJ. The detonation velocity of multi-component #2 is similar to that of methane premixed gas, and the fluctuation range is larger. From the perspective of cell structure characteristics, it is found that the variation trend of the number of detonation helical heads is similar to that of the velocity. The stability of component #1 is greater than that of component #2. The results are helpful to grasp the detonation propagation mechanism of multi-component. © 2024 Materials China. All rights reserved.

引用

页码：339 / 348

页数：9

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