四川大学学报（自然科学版）2025，Vol.62Issue(6)：1463-1472,10.DOI:10.19907/j.0490-6756.250086
氢氧燃烧反应中OH*发光信号理论模拟研究
Theoretical simulation study on the chemiluminescence of OH* in hydrogen-oxygen combustion reactions
摘要
Abstract
The OH* chemiluminescence signal serves as an effective indicator of key combustion parameters,including flame structures,reaction kinetics,and heat release rate,thereby acting as a crucial diagnostic tool in combustion studies.In this study,a combustion mechanism for hydrogen-oxygen and ethylene systems,in-corporating excited-state reaction pathways was developed by the introduction of four excited species:O*,OH*,O2(a1∆g)and HO2*.The peak intensity of the OH* chemiluminescence signal in hydrogen-oxygen com-bustion was simulated and showed good agreement with the shock tube experimental measurements.Through sensitivity and rate of production analyses,the formation and consumption mechanisms of the OH*chemiluminescence signal were elucidated.It was found that the primary formation pathway of OH* is O*+H2O→OH*+OH,while O2(a1∆g)and HO2* play important roles in completing the reaction network.To validate the reliability of the proposed mechanism,the ignition delay times of hydrogen-oxygen and ethylene combustion were simulated.Comparative analyses revealed that the developed mechanism,which incorpo-rates excited-state reactions,improves the prediction accuracy of experimentally measured ignition delay times.This study provides theoretical support for elucidating the microscopic mechanisms of combustion and contributes to a deeper understanding of the fundamental nature of combustion processes.关键词
化学发光/激发态/氢氧燃烧/乙烯燃烧/燃烧机理Key words
Chemiluminescence/Excited-state/Hydrogen-oxygen combustion/Ethylene combustion/Com-bustion mechanism分类
化学化工引用本文复制引用
杨倩,陈文蓝,任海生..氢氧燃烧反应中OH*发光信号理论模拟研究[J].四川大学学报（自然科学版）,2025,62(6):1463-1472,10.基金项目
国家自然科学基金(21903057) （21903057）
