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Comparison of hypersonic experiments and PNS predictions. I - Aerothermodynamics. II - AerodynamicsA 3D parabolized Navier-Stokes (PNS) technique is examined in terms of applications to equilibrium-air and perfect-gas hypersonic flows at different Mach numbers and angles of attack. The method renders sublayer approximation unnecessary, and treats axis-normal coupling effects first followed by a shock solution and a corrector step. Predictions of hypersonic flowfields over several blunt conical configurations are found to agree with established wind-tunnel and flight data, although those for the Dhawan-Narasimha (1958) transition model vary from the experimental data. The PNS technique is also applied to predictions of wall-pressure distributions and force and moment data, and the results agree with experimental values. The PNS method allows the calculation of a wide variety of configurations with only a slight increase over traditional computing times.
Document ID
19910064214
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bhutta, Bilal A.
(VRA, Inc. Blacksburg, VA, United States)
Lewis, Clark H.
(VRA, Inc. Blacksburg, VA, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1991
Publication Information
Publication: Journal of Spacecraft and Rockets
Volume: 28
ISSN: 0022-4650
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 90-3068
Accession Number
91A48837
Funding Number(s)
CONTRACT_GRANT: NAS3-25450
Distribution Limits
Public
Copyright
Other

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