Deflagration to detonation transition in combustible gas mixtures

✍ Scribed by N.N. Smirnov; I.I. Panfilov

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 776 KB
• Volume: 101
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(94)00190-4

✦ Synopsis

This paper presents the results of a computational investigation of the process of deflagration to detonation transition in a combustible gas mixture. The type of combustion (i.e., deflagration or detonation) supported by a two-step reaction scheme is studied as a function of the activation energies. It is shown that both a deflagration to detonation transition and a deflagration wave that lags behind a leading shock are possible. Two types of defagration to detonation transitions are found theoretically: initiation of detonation from the flame zone and initiation of detonation along a contact discontinuity in the compressed gas near the primary shock wave.