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Artificial compressibility methods for numerical solutions of transonic full potential equationNew methods for transonic flow computations based on the full potential equation in conservation form are presented. The idea is to modify slightly the density (due to the artificial viscosity in the supersonic region), and solve the resulting elliptic-like problem iteratively. It is shown that standard discretization techniques (central differencing) as well as some standard iterative procedures (SOR, ADI, and explicit methods) are applicable to the modified transonic mixed-type equation. Calculations of transonic flows around cylinders and airfoils are discussed with special emphasis on the explicit methods that are suitable for vector processing on the STAR 100 computer.
Document ID
19790062039
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hafez, M.
(Flow Research, Inc. Kent, WA, United States)
Murman, E.
(Flow Research Co. Kent, Wash., United States)
South, J.
(NASA Langley Research Center Theoretical Aerodynamics Branch, Hampton, Va., United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1979
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 78-1148
Accession Number
79A46052
Funding Number(s)
CONTRACT_GRANT: NAS1-14246
Distribution Limits
Public
Copyright
Other

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