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Compressible Inviscid Vortex Flow of a Sharp Edge Delta Wing

Longo, J.M.A. (1995) Compressible Inviscid Vortex Flow of a Sharp Edge Delta Wing. In: AIAA Journal, 33, pp. 680-687. AIAA, Washington, D.C., USA.

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Abstract

An analysis is presented on the compressible inviscid vortex flow over three delta wings with sharp leading edges with leading edge sweep angles *&#6160, 70, and 76 deg using numerical solutions of the Euler equations. Presentations of results are given for Mach numbers ranging from M*&#610.1 to 0.8 and for angles of attack up to the onset of vortex breakdown. The paper focuses the attention on the effects of the vortex flow on the flowfield of a delta wing. The occurence of shock waves of two types, crossflow and terminating (or rear) shocks in the vortical flowfields, are investigated; the possibility of shock-induced vortex breakdown and the effects of compressibility on the rapid performance degradation of delta wings after vortex bursting are studied in detail. It is shown that the onset of the vortex bursting at the wing trailing edge is only weakly influenced by the freestream Mach number.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1995,
Title:Compressible Inviscid Vortex Flow of a Sharp Edge Delta Wing
Authors:
AuthorsInstitution or Email of Authors
Longo, J.M.A.UNSPECIFIED
Date:1995
Journal or Publication Title:AIAA Journal
Volume:33
Page Range:pp. 680-687
Publisher:AIAA, Washington, D.C., USA
Status:Published
Keywords:Vortex Flow, inviscid flow, delta wings, compressible flow, shock-vortex interaction
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Military Technologies
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:05

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