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Numerical Analysis of the Vortical Flow Around a Delta Wing- Canard Configuration

Das, A. and Longo, J.M.A. (1995) Numerical Analysis of the Vortical Flow Around a Delta Wing- Canard Configuration. Journal of Aircraft, 32, pp. 716-725.

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Abstract

In this artical a numerical study of the vortical flows around a delta-shaped wing, wiht and without canard, is undertaken by solving the Euler equations. The analysis elucidates the essential physics that are involved in establishing the complex vortical flows around the configurations, especially with the required radial pressure gradients that provide the accelerating forces for spiraling. Further emphasis is put in studying the flow gradients arising over the wing surface and along the vortex axis. An interesting physical feature is the occurrence of two saddle points on the vortex axis at high angles of incidence, one causing flow reversal and the other the vortex bursting. The beneficial effect of the canard vortex on the wing vortex has been clearly demonstrated, it leads to a significant retardation of the vortex bursting. All essential experimental findings known until now have been closely reproduced, and thus, confirmed and.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1995,
Title:Numerical Analysis of the Vortical Flow Around a Delta Wing- Canard Configuration
Authors:
AuthorsInstitution or Email of Authors
Das, A.UNSPECIFIED
Longo, J.M.A.UNSPECIFIED
Date:1995
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:32
Page Range:pp. 716-725
Status:Published
Keywords:Delta wings, Canard, vortical flow, vortex breakdown, numerical simulation
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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