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Numerical Study of Four-Vortex Aircraft Wakes

Stumpf, E. (2002) Numerical Study of Four-Vortex Aircraft Wakes. EuroMech Kolloquium No. 433, Aachen (de), 21.03.2002.

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Abstract

In the present paper, three 4-vortex configurations are investigated numerically with regard to their potential to reduce the rolling moment in the farfield. In a second step - as a kind of "inverse" design- the high-lift configurations of the DLR-ALVAST and DLR-F11 models are modified such that they produce vortex wakes close to the found optimal vortex systems. It is shown that simple design rules are sufficient for a successful modification. The realization of a priori defined wake topologies in the farfield is proven by 3D-Euler calculations of the wake vortex nearfield coupled to 2D-LES simulations of the vortex roll-up for the modified high-lift configurations.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003,
Title:Numerical Study of Four-Vortex Aircraft Wakes
Authors:
AuthorsInstitution or Email of Authors
Stumpf, E.UNSPECIFIED
Date:2002
Status:Published
Keywords:Wake vortex, instability 4-vortex system, high lift
Event Title:EuroMech Kolloquium No. 433, Aachen (de), 21.03.2002
Organizer:RWTH Aachen
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Low-Emission Air Traffic (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:07

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