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On the accuracy of Whitham's methodThe steady flow of an ideal gas past a conical body is studied by the method of matched asymptotic expansions and by Whitham's method in order to assess the accuracy of the latter. It is found that while Whitham's method does not yield a correct asymptotic representation of the perturbation field to second order in regions where the flow ahead of the Mach cone of the apex is disturbed, it does correctly predict the changes of the second-order perturbation quantities across a shock (the first-order shock strength). The results of the analysis are illustrated by a special case of a flat, rectangular plate at incidence.
Document ID
19740037532
Document Type
Reprint (Version printed in journal)
Authors
Zahalak, G. I. (Brown University Providence, R.I., United States)
Myers, M. K. (George Washington University Hampton, Va., United States)
Date Acquired
August 7, 2013
Publication Date
February 1, 1974
Publication Information
Publication: AIAA Journal
Volume: 12
Subject Category
AERODYNAMICS
Funding Number(s)
CONTRACT_GRANT: NGL-33-008-098
Distribution Limits
Public
Copyright
Other