The shock wave focusing is a promising detonation initiation method that can greatly shorten the deflagration to detonation transition distance. In this work, we conducted experiments under the constant operating pressure in a conical reflector to explore the shock focusing induced ignition in CH4/O2/Ar mixture. The second ignition is formed in the conical reflector under certain conditions. The introduction of the second ignition brings a higher pressure peak after ignition. By adjusting the incident shock intensity, three modes of ignition are found in the conical reflex. The pressure peak of combustion and the time to induce the second ignition are systematically investigated.
Analysis on the Second Ignition Phenomenon Induced by Shock Wave Focusing in a 90° Conical Reflector
Lect. Notes Electrical Eng.
International Conference on Aerospace System Science and Engineering ; 2021 July 14, 2021 - July 16, 2021
Proceedings of the International Conference on Aerospace System Science and Engineering 2021 ; Kapitel : 8 ; 95-105
09.07.2022
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Analysis on the Second Ignition Phenomenon Induced by Shock Wave Focusing in a 90° Conical Reflector
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