IMECH-IR  > 高温气体动力学国家重点实验室
Assessment of Vibrational Non-Equilibrium Effect on Detonation Cell Size
Shi LS; Shen H; Zhang P; Zhang DL(张德良); Wen CH; Wen, CY (reprint author), Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China.
Source PublicationCOMBUSTION SCIENCE AND TECHNOLOGY
2017
Volume189Issue:5Pages:841-853
ISSN0010-2202
AbstractTo resolve the discrepancy between the numerical detonation cell size and experimental observations simulations are conducted with a detailed thermochemical reaction model for a premixed argon-diluted hydrogen-oxygen mixture. Four different scenarios are considered: (i) The whole system is in thermodynamic equilibrium; (ii) the vibrational relaxation is considered and the translational-rotational temperature is used as the dominant temperature of the chemical reactions; (iii) the same non-equilibrium effect as in the second scenario is used along with Park's two-temperature model to account for the effect of vibrational temperature on chemical reaction rates; and (iv) a more physically consistent vibration-chemistry-vibration coupling model is adopted. The simulated detonation cell widths for the first and second scenarios are significantly lower than the experimental measurements whereas reasonable agreement is observed for the third and fourth scenarios. These results confirm that the involvement of vibrational relaxation in the chemical reactions is an important mechanism in gaseous detonation.
KeywordCellular Structure Coupled-vibration-chemistry-vibration (Cvcv) Model Detonation Two-temperature Model Vibrational Non-equilibrium
DOI10.1080/00102202.2016.1260561
Indexed BySCI ; EI
Language英语
WOS IDWOS:000395194900005
WOS KeywordTIME CONSERVATION ELEMENT ; CHEMICAL-KINETICS ; MODEL ; SYSTEMS ; WAVES ; LAWS
WOS Research AreaThermodynamics ; Energy & Fuels ; Engineering
WOS SubjectThermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical
Funding Organizationopening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology)(KFJJ15-09M) ; opening project of Key Laboratory of High Temperature Gas Dynamics (Institute of Mechanics Chinese Academy of Sciences)(LHD2016KF05) ; Natural Science Foundation of China(11372265)
Classification二类
Ranking4
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60596
Collection高温气体动力学国家重点实验室
Corresponding AuthorWen, CY (reprint author), Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China.
Recommended Citation
GB/T 7714
Shi LS,Shen H,Zhang P,et al. Assessment of Vibrational Non-Equilibrium Effect on Detonation Cell Size[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2017,189(5):841-853.
APA Shi LS,Shen H,Zhang P,张德良,Wen CH,&Wen, CY .(2017).Assessment of Vibrational Non-Equilibrium Effect on Detonation Cell Size.COMBUSTION SCIENCE AND TECHNOLOGY,189(5),841-853.
MLA Shi LS,et al."Assessment of Vibrational Non-Equilibrium Effect on Detonation Cell Size".COMBUSTION SCIENCE AND TECHNOLOGY 189.5(2017):841-853.
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