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Tracking the Nacelle Vortex Above Aircraft Wing in the ETW at Real Mach- and Reynolds Numbers by Means of PIV

Konrath, Robert and Geisler, Reinhard and Agocs, Janos and Otter, Dirk and Ehlers, Hauke and Philipp, Florian and Quest, Jürgen (2015) Tracking the Nacelle Vortex Above Aircraft Wing in the ETW at Real Mach- and Reynolds Numbers by Means of PIV. AIAA SciTech 2015, 05. – 09. Jan. 2015, Kissimmee, FL, USA. DOI: 10.2514/6.2015-1560

Full text not available from this repository.

Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2015-1560


Stereo PIV measurements have been performed in multiple planes of the flow above the wing of a high-lift aircraft configuration in order to investigate the performance of strake vortex generators attached to the nacelle with regard to the evolution of flow separations on the main wing at high angles of attack. The measurements have been carried out in the cryogenic pressurized transonic wind tunnel facility of ETW that allows to perform the measurements at real flight Mach and Reynolds numbers by using total gas temperatures and pressures down to 110 K and up to 450 kPa, respectively. Because of this extreme wind tunnel conditions a specific cryo-PIV measurement system has been used. To provide insights into the streamwise development of the vortical flow a light-sheet, oriented perpendicular to the direction of free stream velocity, has been positioned to different chord stations of the wing. This paper focuses on a description of the employed PIV setup in the ETW showing first results for a standard configuration obtained at flight Reynolds numbers.

Item URL in elib:https://elib.dlr.de/93129/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA 2015-1560
Title:Tracking the Nacelle Vortex Above Aircraft Wing in the ETW at Real Mach- and Reynolds Numbers by Means of PIV
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Konrath, Robertrobert.konrath (at) dlr.deUNSPECIFIED
Geisler, Reinhardreinhard.geisler (at) dlr.deUNSPECIFIED
Agocs, Janosjanos.agocs (at) dlr.deUNSPECIFIED
Otter, Dirkdirk.otter (at) dlr.deUNSPECIFIED
Ehlers, Haukehauke.ehlers (at) dlr.deUNSPECIFIED
Philipp, Florianflorian.philipp (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2015-1560
Page Range:pp. 1-8
Series Name:Conference Proceedings online
Keywords:PIV, HINVA, ETW, cryoPIV, High Reynolds number, High-Lift
Event Title:AIAA SciTech 2015
Event Location:Kissimmee, FL, USA
Event Type:international Conference
Event Dates:05. – 09. Jan. 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:05 May 2015 15:16
Last Modified:05 May 2015 15:16

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