The formation of an overdriven detonation wave in the flow of methane-oxygen mixtures in a channel of variable cross section. (October 2015)

• Record Type: Journal Article
• Authors: Bivol, G Yu; Golovastov, S V; Golub, V V
• Is Part Of: Journal of physics. Number 653(2015)
• Publication Date: 2015-10
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/653/1/012066
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Formation of an overdriven detonation wave in methane-oxygen mixtures in a channel was investigated experimentally The gas mixture was ignited by a spark gap, located at the closed end of the combustion chamber. To create the overdriven detonation wave, a decay of the stationary detonation wave in the transition to a channel with a larger cross-section was carried out. Then, a complex of a shock wave and flame front moved into the channel with converging section. Formation of the overdriven detonation wave with parameters several times greater than those of the Chapman-Jouguet detonation was recorded at the outlet of the conical section. The velocities of the detonation front depend upon the composition of the mixture.