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Enhancement of aircraft wake vortex decay in ground proximity Experiment versus Simulation

Stephan, Anton and Holzäpfel, Frank and Misaka, Takashi and Geisler, Reinhard and Konrath, Robert (2013) Enhancement of aircraft wake vortex decay in ground proximity Experiment versus Simulation. CEAS Aeronautical Journal, pp. 1-17. Springer. DOI: 10.1007/s13272-013-0094 ISSN 1869-5590

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Official URL: http://download.springer.com/static/pdf/62/art%253A10.1007%252Fs13272-013-0094-8.pdf?auth66=1386145842_4a152c03795df46a0005825f1070bb0b&ext=.pdf

Abstract

Aircraft wake vortex evolution in ground proximity is investigated experimentally in a water towing tank, as well as numerically with wall-resolved large eddy simulation (LES). With these complementary instruments the enhancement of wake vortex decay by obstacles, introduced at the ground surface, is analyzed. The experimental methods include time-resolved stereo particle image velocimetry and vortex core visualization. For comparison with the experiment, the LES considers the turbulent wake of the strut, holding the towed aircraft model. Wake vortex trajectories and circulation decay are compared at different distances from the obstacle. Tracers are employed to visualize the obstacle’s effects on the vortex core, in LES and experiment. The experimentally obtained trajectories and decay characteristics are reproduced qualitatively by simulations, whereas the agreement is degraded at later times.

Item URL in elib:https://elib.dlr.de/86505/
Document Type:Article
Additional Information:Published online: 27. November 2013
Title:Enhancement of aircraft wake vortex decay in ground proximity Experiment versus Simulation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stephan, AntonDLR, IPAUNSPECIFIED
Holzäpfel, FrankDLR, IPAUNSPECIFIED
Misaka, Takashimisaka (at) edge.ifs.tohoku.ac.jpUNSPECIFIED
Geisler, Reinhardreinhard.geisler (at) dlr.deUNSPECIFIED
Konrath, Robertrobert.konrath (at) dlr.deUNSPECIFIED
Date:2013
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :10.1007/s13272-013-0094
Page Range:pp. 1-17
Publisher:Springer
ISSN:1869-5590
Status:Published
Keywords:Wake vortex flow, Ground effekt, Decay enhancement, Large eddy simulation, Towing tank, LES, Plate Line
HGF - Research field:Aeronautics, Space and Transport
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 - Air Traffic and Weather (old), L - Wake Vortices (old)
Location: Oberpfaffenhofen , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Institute of Atmospheric Physics > Cloud Physics and Traffic Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:10 Dec 2013 15:23
Last Modified:31 Jul 2019 19:43

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