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Analysis of two-dimensional incompressible flows by a subsurface panel methodA new approach to panel methods is explored for two-dimensional steady incompressible flows. The method uses linear distributions of sources and vortices on straight-line panels, but satisfies boundary conditions on the actual body surface, at nodes that are also end points of the panels. The result is continuity in body-surface velocity distribution, without recourse to numerical quadrature for the velocity influence coefficients. The method is unusually sensitive to the distribution of the nodes. For example, it almost always fails to give acceptable results when the nodes are distributed randomly. However, the continuity of the velocity distribution makes possible a unique node redistribution scheme, which may be iterated to give accurate results reliably.
Document ID
19800046396
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Moran, J.
(Minnesota, University Minneapolis, Minn., United States)
Cole, K.
(Minnesota Univ. Minneapolis, MN, United States)
Wahl, D.
(Minnesota Univ. Minneapolis, MN, United States)
Date Acquired
August 10, 2013
Publication Date
May 1, 1980
Publication Information
Publication: AIAA Journal
Volume: 18
Subject Category
Aerodynamics
Accession Number
80A30566
Funding Number(s)
CONTRACT_GRANT: NSG-2316
CONTRACT_GRANT: N00014-76-0182
Distribution Limits
Public
Copyright
Other

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