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Combining imaged based measurement techniques for V2527 engine flow characterization at an A320 in ground operation

Schröder, Andreas and Schanz, Daniel and Geisler, Reinhard and Agocs, Janos and Pallek, Dieter and Schroll, Michael and Klinner, Joachim and Beversdorff, Manfred and Voges, Melanie and Willert, Christian (2014) Combining imaged based measurement techniques for V2527 engine flow characterization at an A320 in ground operation. Annual MOTAR Meeting, 10. - 11. April 2014, Paris, Palaiseau, France.

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Among the objectives of the DLR-project SAMURAI (Synergy of Advanced Measurement techniques for Unsteady and high Reynolds number Aerodynamic Investigations) the investigation of the flow and sound field upstream and downstream of a full scale aeroengine is aimed at providing important reference data required for reliable modeling and prediction. In this regard a wide variety of contactless and non-invasive laser optical and acoustic measurement techniques have matured in recent years to allow their application on full scale aircraft, both in stationary ground operation or even in-flight conditions. In September 2013 a week-long measurement campaign involved the DLR research aircraft A320-ATRA (Advanced technology research aircraft) inside a sound-attenuating hangar of Lufthansa Technik at Hamburg Airport. Within this campaign four image-based measurement techniques were applied in parallel to acquire data for the IAE V2527 engines operating at conditions varying between idle and take-off: • stereoscopic particle image velocimetry (PIV) of the engine intake and exhaust jet, • high frame rate background oriented schlieren (BOS) of the exhaust jet in combination with acoustic array measurements, • projected pattern correlation technique (PROPAC) for the measurement of fan blade deformation under load, • marker-based optical deformation measurements (MODE) to obtain reference positions of the aircraft during engine runs. The objective of the ground tests was to establish a combined measurement data base to locate the zones within the engine exhaust flow where large, turbulent fluctuations in velocity and density produce noise. Simultaneous application of PIV, BOS and acoustic array techniques were carried out in front and behind the aircraft jet engine for the characterization of inlet flow disturbance due to ground vortex formation, the turbulent free jet flow field as well as engine’s core and jet noise. The acquired data serves as a basis for validation of numerical simulations that aim at predicting engine performance and noise emission.

Item URL in elib:https://elib.dlr.de/88953/
Document Type:Conference or Workshop Item (Speech)
Title:Combining imaged based measurement techniques for V2527 engine flow characterization at an A320 in ground operation
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schröder, Andreasandreas.schroeder (at) dlr.deUNSPECIFIED
Schanz, Danieldaniel.schanz (at) dlr.deUNSPECIFIED
Geisler, Reinhardreinhard.geisler (at) dlr.deUNSPECIFIED
Agocs, Janosjanos.agocs (at) dlr.deUNSPECIFIED
Pallek, Dieterdieter.pallek (at) dlr.deUNSPECIFIED
Schroll, Michaelmichael.schroll (at) dlr.deUNSPECIFIED
Klinner, Joachimjoachim.klinner (at) dlr.deUNSPECIFIED
Beversdorff, Manfredmanfred.beversdorff (at) dlr.deUNSPECIFIED
Voges, Melaniemelanie.voges (at) dlr.deUNSPECIFIED
Willert, Christianchris.willert (at) dlr.deUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Jet engine, SPIV, BOS, A320 ground test
Event Title:Annual MOTAR Meeting
Event Location:Paris, Palaiseau, France
Event Type:Workshop
Event Dates:10. - 11. April 2014
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 , Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Institute of Propulsion Technology > Engine Measurement Systems
Deposited By: Micknaus, Ilka
Deposited On:07 Oct 2014 14:25
Last Modified:07 Oct 2014 14:25

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