Study on the Mechanism of Detonation to Quasi-detonation Transition
Data(s) |
2010
|
---|---|
Resumo |
In this paper, the mechanism of detonation to quasi-detonation transition was discussed, a new physical model to simulate quasi-detonation was proposed, and one-dimensional theoretical and numerical simulation was conducted. This study firstly demonstrates that the quasi-detonation is of thermal choking. If the conditions of thermal choking are created by some disturbances, the supersonic flow is then unable to accept additional thermal energy, and the CJ detonation becomes the unstable quasi-detonation precipitately. The kinetic energy loss caused by this transition process is firstly considered in this new physical model. The numerical results are in good agreement with previous experimental observations qualitatively, which demonstrates that the quasi-detonation model is physically correct and the study are fundamentally important for detonation and supersonic combustion research. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
ISCM II AND EPMESC XII, PTS 1 AND 2. 2nd International Symposium on Computational Mechanics, Hong Kong, PEOPLES R CHINA. NOV 30-DEC 03, 2009, pp.453-458. |
Palavras-Chave | #Detonation #Quasi-Detonation #Thermal Choking |
Tipo |
会议论文 |