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Reaction zone structure for strong, weak overdriven, and weak underdriven oblique detonationsA simple dynamic systems analysis is used to give examples of strong, weak overdriven, and weak underdriven oblique detonations. Steady oblique detonations consisting of a straight lead shock attached to a solid wedge followed by a resolved reaction zone structure are admitted as solutions to the reactive Euler equations. This is demonstrated for a fluid that is taken to be an inviscid, calorically perfect ideal gas that undergoes a two-step irreversible reaction with the first step exothermic and the second step endothermic. This model admits solutions for a continuum of shock wave angles for two classes of solutions identified by a Rankine-Hugoniot analysis: strong and weak overdriven waves. The other class, weak underdriven, is admitted for eigenvalue shock-wave angles. Chapman-Jouguet waves, however, are not admitted. These results contrast those for a corresponding onestep model that, for detonations with a straight lead shock, only admits strong, weak overdriven, and Chapman-Jouguet solutions.
Document ID
19930051495
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Powers, Joseph M.
(NASA Lewis Research Center Cleveland, OH, United States)
Gonthier, Keith A.
(Notre Dame Univ., IN; NASA, Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
September 1, 1992
Publication Information
Publication: Physics of Fluids A
Volume: 4
Issue: 9
ISSN: 0899-8213
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
93A35492
Distribution Limits
Public
Copyright
Other

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