化工学报2024，Vol.75Issue(z1)：339-348,10.DOI:10.11949/0438-1157.20240717
多元组分爆轰不稳定性定量实验研究
Quantitative experimental study on detonation instability of multi-component
摘要
Abstract
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 0.95 VCJ.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.关键词
多元组分/爆轰/不稳定性/氢/甲烷/反应动力学Key words
multi-component/detonation/instability/hydrogen/methane/reaction kinetics分类
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赵焕娟,包颖昕,于康,刘婧,钱新明..多元组分爆轰不稳定性定量实验研究[J].化工学报,2024,75(z1):339-348,10.基金项目
国家重点研发计划项目(2022YFC30063) （2022YFC30063）
化学品安全国家重点实验室开放项目(SKLCS-2024023) （SKLCS-2024023）
