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A parametric study of self-similar blast waves.Comprehensive examination of self-similar blast waves with respect to two parameters, one describing the front velocity and the other the variation of the ambient density immediately ahead of the front. All possible front trajectories are taken into account, including limiting cases of the exponential and logarithmic form. The structure of the waves is analyzed by means of a phase plane defined in terms of two reduced coordinates. Loci of extrema of the integral curves in the phase plane are traced, and loci of singularities are determined on the basis of their intersections. Boundary conditons are introduced for the case where the medium into which the waves propagate is at rest. Representative solutions, pertaining to all the possible cases of blast waves bounded by shock fronts propagating into an atmosphere of uniform density, are obtained by evaluating the integral curves and determining the corresponding profiles of the gasdynamic parameters. Particular examples of integral curves for waves bounded by detonations are given, and all the degenerate solutions corresponding to cases where the integral curve is reduced to a point are delineated.
Document ID
19720044166
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Oppenheim, A. K.
Kuhl, A. L.
Lundstrom, E. A.
Kamel, M. M.
(California, University Berkeley, Calif., United States)
Date Acquired
August 6, 2013
Publication Date
April 25, 1972
Publication Information
Publication: Journal of Fluid Mechanics
Volume: 52
Subject Category
Thermodynamics And Combustion
Report/Patent Number
AD-745816
Accession Number
72A27832
Funding Number(s)
CONTRACT_GRANT: NGR-05-003-050
CONTRACT_GRANT: AF-AFOSR-129-67
CONTRACT_GRANT: NSG-702
CONTRACT_GRANT: NSF GK-2156
Distribution Limits
Public
Copyright
Other

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