Detonation initiation and propagation in nonuniform supersonic combustible mixtures
Detonation initiation and propagation in nonuniform supersonic combustible mixtures
Detonation initiation and propagation using a hot jet in nonuniform combustible mixtures was investigated through fine structure simulations. The Mach reflection on the upper wall resulted in the formation of the Mach stem finally near the interface, which was actually a local detonation wave. The continuous collisions of the lower triple-wave point between the lower wall and the upper triple-wave point played an important role in the successful detonation initiation. The dynamic stable structure propagated at the same speed as a whole in the nonuniform supersonic combustible mixtures. After the shutdown of the hot jet, a relatively new dynamic stable structure was formed eventually in the flow field. The hot jet not only could realize the detonation initiation, but also made an impact on the detonation propagation and the formation of the final dynamic stable structure.
adaptive mesh refinement, hot jet, initiation and propagation, nonuniform supersonic combustible mixtures
525-536
Cai, X.
c733b422-c2e4-44f9-a7f1-6ac222f489bc
Liang, J.
96602708-8db0-465d-89ce-ed1e0f9fa499
Lin, Z.
b737d8cb-3642-46d4-8915-7e273b3ecda3
Deiterding, R.
ce02244b-6651-47e3-8325-2c0a0c9c6314
Zhuang, F.
724d305a-f1f3-4a34-b12e-b179a9b1089d
2015
Cai, X.
c733b422-c2e4-44f9-a7f1-6ac222f489bc
Liang, J.
96602708-8db0-465d-89ce-ed1e0f9fa499
Lin, Z.
b737d8cb-3642-46d4-8915-7e273b3ecda3
Deiterding, R.
ce02244b-6651-47e3-8325-2c0a0c9c6314
Zhuang, F.
724d305a-f1f3-4a34-b12e-b179a9b1089d
Cai, X., Liang, J., Lin, Z., Deiterding, R. and Zhuang, F.
(2015)
Detonation initiation and propagation in nonuniform supersonic combustible mixtures.
Combustion Science and Technology, 187 (4), .
(doi:10.1080/00102202.2014.958223).
Abstract
Detonation initiation and propagation using a hot jet in nonuniform combustible mixtures was investigated through fine structure simulations. The Mach reflection on the upper wall resulted in the formation of the Mach stem finally near the interface, which was actually a local detonation wave. The continuous collisions of the lower triple-wave point between the lower wall and the upper triple-wave point played an important role in the successful detonation initiation. The dynamic stable structure propagated at the same speed as a whole in the nonuniform supersonic combustible mixtures. After the shutdown of the hot jet, a relatively new dynamic stable structure was formed eventually in the flow field. The hot jet not only could realize the detonation initiation, but also made an impact on the detonation propagation and the formation of the final dynamic stable structure.
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Accepted/In Press date: 21 August 2014
e-pub ahead of print date: 27 October 2014
Published date: 2015
Keywords:
adaptive mesh refinement, hot jet, initiation and propagation, nonuniform supersonic combustible mixtures
Organisations:
Aerodynamics & Flight Mechanics Group
Identifiers
Local EPrints ID: 380653
URI: http://eprints.soton.ac.uk/id/eprint/380653
ISSN: 0010-2202
PURE UUID: 4c28e925-b0df-4fc8-a9bf-5f867aeb73a3
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Date deposited: 08 Sep 2015 15:38
Last modified: 15 Mar 2024 03:52
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Author:
X. Cai
Author:
J. Liang
Author:
Z. Lin
Author:
F. Zhuang
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