elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Analysis of Flow Field Measurements Obtained in a Large Tow Tank Regarding the Decay of Wake Vortices in the Far-Field for Two- and Four-Vortex Systems

Konrath, Robert and Pallek, Dieter and Mattner, Hartmut and Carmer, Carl F. v. (2009) Analysis of Flow Field Measurements Obtained in a Large Tow Tank Regarding the Decay of Wake Vortices in the Far-Field for Two- and Four-Vortex Systems. 47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition, 2009-01-05 - 2009-01-08, Orlando, FL (USA).

Full text not available from this repository.

Official URL: http://www.aiaa.org

Abstract

Stereo PIV measurements on a 2- and 4-vortex system have been performed in a large tow tank of SVA in Potsdam. The considered 4-vortex system consists of two counter-rotating vortex pairs generated by wings of a span width ratio of b<sub>2</sub>/b<sub>1</sub> = 0.3 and a circulation ratio of Γ<sub>2</sub>/Γ<sub>1</sub> = -0.3. As reference the corresponding 2-vortex system is also considered. A submersible Stereo PIV system attached to a vertical traversing system was employed. Cross-plane velocity fields are obtained of the descending wake vortex system to access the vortex dynamics well into the wake far field (x/b > 500, τ > 11). The spatio-temporal evolutions of the vortex systems are analyzed with respect to the vortex trajectories, circulations and core radii as well as the total kinetic energy contained in the measured flow field.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Analysis of Flow Field Measurements Obtained in a Large Tow Tank Regarding the Decay of Wake Vortices in the Far-Field for Two- and Four-Vortex Systems
Authors:
AuthorsInstitution or Email of Authors
Konrath, RobertUNSPECIFIED
Pallek, DieterUNSPECIFIED
Mattner, HartmutUNSPECIFIED
Carmer, Carl F. v.UNSPECIFIED
Date:2009
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:Session 50-ASE-3
Page Range:p. 10
Series Name:Conference Proceedings
Status:Published
Keywords:Wake vortices, Aircraft wakes, 2-vortex system, 4-vortex system, far wake, PIV, tow tank
Event Title:47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition
Event Location:Orlando, FL (USA)
Event Type:international Conference
Event Dates:2009-01-05 - 2009-01-08
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:15 Jan 2009
Last Modified:27 Apr 2009 14:59

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.