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This article is cited in 11 scientific papers (total in 11 papers)
Numerical study of formation of a detonation wave in a supersonic flow over a wedge by an H$_2$–O$_2$ mixture with nonequilibrium excitation of molecular vibrations of reagents
L. V. Bezgin, V. I. Kopchenov, A. M. Starik, N. S. Titova Baranov Central Institute of Aviation Motors, Moscow, 111116, Russia
Abstract:
Specific features of formation of an oblique detonation wave in a supersonic hydrogen-oxygen mixture flow over a plane wedge are analyzed. Preliminary excitation of molecular vibrations of H$_2$ is shown to lead to a noticeable (severalfold) decrease in the induction-zone length and the distance at which the detonation wave is formed. These effects are manifested even if H$_2$ molecules are excited in a narrow region in the vicinity of the flow centerline. The reason for these effects is intensification of chain reactions in the H$_2$–O$_2$ (air) mixture owing to the presence of vibrationally excited hydrogen molecules in the flow.
Keywords:
supersonic flow, detonation wave, hydrogen-oxygen mixture, vibrationally excited molecules.
Received: 10.09.2004
Citation:
L. V. Bezgin, V. I. Kopchenov, A. M. Starik, N. S. Titova, “Numerical study of formation of a detonation wave in a supersonic flow over a wedge by an H$_2$–O$_2$ mixture with nonequilibrium excitation of molecular vibrations of reagents”, Fizika Goreniya i Vzryva, 42:1 (2006), 78–86; Combustion, Explosion and Shock Waves, 42:1 (2006), 68–75
Linking options:
https://www.mathnet.ru/eng/fgv1564 https://www.mathnet.ru/eng/fgv/v42/i1/p78
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