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A conservative finite difference algorithm for the unsteady transonic potential equation in generalized coordinatesAn implicit, approximate-factorization, finite-difference algorithm has been developed for the computation of unsteady, inviscid transonic flows in two and three dimensions. The computer program solves the full-potential equation in generalized coordinates in conservation-law form in order to properly capture shock-wave position and speed. A body-fitted coordinate system is employed for the simple and accurate treatment of boundary conditions on the body surface. The time-accurate algorithm is modified to a conventional ADI relaxation scheme for steady-state computations. Results from two- and three-dimensional steady and two-dimensional unsteady calculations are compared with existing methods.
Document ID
19820056760
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bridgeman, J. O.
(NASA Ames Research Center Moffett Field, CA, United States)
Steger, J. L.
(Stanford University Stanford, CA, United States)
Caradonna, F. X.
(U.S. Army Aeromechanics Laboratory Moffett Field, CA, United States)
Date Acquired
August 10, 2013
Publication Date
August 1, 1982
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 82-1388
Meeting Information
Meeting: Atmospheric Flight Mechanics Conference
Location: San Diego, CA
Start Date: August 9, 1982
End Date: August 11, 1982
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
82A40295
Funding Number(s)
CONTRACT_GRANT: F33615-81-K-3020
Distribution Limits
Public
Copyright
Other

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