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Multi-stereo PIV measurement of propeller wake flow in industrial facility

Novara, Matteo and Geisler, Reinhard and Schröder, Andreas (2015) Multi-stereo PIV measurement of propeller wake flow in industrial facility. AIAA Aviation - 31st AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 22. - 26. June 2015, Dallas, TX, USA. DOI: 10.2514/6.2015-2867

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Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2015-2867


The flow in the wake of an 11-bladed propeller is investigated by means of phase-locked multi-stereo Particle Image Velocimetry. The use of multiple stereo-PIV systems and the multi-pulse acquisition strategy allow for the reduction of the measurement error and for the enhancement of the velocity dynamic range. The application of the measurement technique in the Airbus Low Speed Wind Tunnel industrial facility (LSWT, Bremen, Germany) poses challenges mainly due to the vibrations of the imaging system and acquisition phase jitter, ultimately affecting the spatial resolution of the measurement. A correction scheme based on the analysis of velocity fields from different stereo-PIV systems is used to largely compensate these effects, providing velocity fields suitable to be used for validation of computational aeroacoustics codes. Results show that a lower measurement error can be achieved when velocity fields from several stereo-PIV systems are combined. Furthermore, the correction scheme appears to reduce the signal modulation introduced by vibrations in the wake region.

Item URL in elib:https://elib.dlr.de/96117/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA 2015-2867
Title:Multi-stereo PIV measurement of propeller wake flow in industrial facility
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Novara, Matteomatteo.novara (at) dlr.deUNSPECIFIED
Geisler, Reinhardreinhard.geisler (at) dlr.deUNSPECIFIED
Schröder, Andreasandreas.schroeder (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2015-2867
Page Range:pp. 1-13
Series Name:Conference Proceedings online
Keywords:stereoscopic PIV, multistereo, propeller, Airbus, vibrations
Event Title:AIAA Aviation - 31st AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Event Location:Dallas, TX, USA
Event Type:international Conference
Event Dates:22. - 26. June 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:21 Aug 2015 13:38
Last Modified:21 Aug 2015 13:38

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