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Computational unsteady aerodynamics for lifting surfacesTwo dimensional problems are solved using numerical techniques. Navier-Stokes equations are studied both in the vorticity-stream function formulation which appears to be the optimal choice for two dimensional problems, using a storage approach, and in the velocity pressure formulation which minimizes the number of unknowns in three dimensional problems. Analysis shows that compact centered conservative second order schemes for the vorticity equation are the most robust for high Reynolds number flows. Serious difficulties remain in the choice of turbulent models, to keep reasonable CPU efficiency.
Document ID
19890014913
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Edwards, John W. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1988
Publication Information
Publication: VKI, Unsteady Aerodynamics, Volume 2
Subject Category
Aerodynamics
Accession Number
89N24284
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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