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Numerical studies of incompressible flow around delta and double-delta wingsThe subject has been jointly investigated at NASA Langley Research Center and the Aerodynamisches Institut of the RWTH Aachen over a substantial period. The aim of this investigation has been to develop numerical integration procedures for the Navier-Stokes equations - particularly for incompressible three-dimensional viscous flows about simple and double delta wings - and to study the low speed flow behavior, with its complex vortex structures on the leeward side of the wing. The low speed flight regime poses unusual problems because high incidence flight conditions may, for example, encounter symmetric and asymmetric vortex breakdown. Because of the many difficulties to be expected in solving the problem, it was divided into two - analysis of the flow without vortex breakdown and analysis of the breakdown of isolated vortices. The major results obtained so far on the two topics are briefly described.
Document ID
19900029790
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Krause, E.
(Aachen Rheinisch-Westfaelische Technische Hochschule, Federal Republic of Germany, United States)
Liu, C. H.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1989
Publication Information
Publication: Zeitschrift fuer Flugwissenschaften und Weltraumforschung
Volume: 13
ISSN: 0342-068X
Subject Category
Aerodynamics
Accession Number
90A16845
Funding Number(s)
CONTRACT_GRANT: DFG-SFB-25
CONTRACT_GRANT: NAS1-17919
CONTRACT_GRANT: NAS1-18585
Distribution Limits
Public
Copyright
Other

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