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Engineering analysis of slender-body aerodynamics using Sychev similarity parametersThe similarity parameters deduced by Sychev for inviscid hypersonic flow over slender bodies are reviewed and used to correlate flowfield, surface-pressure, normal-force and center-of-pressure data for supersonic flow over thin slender wings and smooth slender bodies at low-to-high angles of attack. Although Sychev expected similarity to hold only for hypersonic freestream and cross flows, it is demonstrated empirically that similarity holds for any value of cross-flow Mach number if the axial flow component is supersonic. It is also shown for thin wings that similarity holds for much larger values of aspect ratio than Sychev supposed. A one-term power-law expression is found to fit all of the normal-force correlations which suggests that it may be possible to develop a simple semi-empirical method for estimating the aerodynamic characteristics of arbitrary slender airframes.
Document ID
19870035248
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hemsch, Michael J.
(PRC Kentron, Inc. Hampton, VA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 87-0267
Accession Number
87A22522
Funding Number(s)
CONTRACT_GRANT: NAS1-18000
Distribution Limits
Public
Copyright
Other

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