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A low Speed Compressor Test Rig for Flutter Investigations

Malzacher, L. and Geist, S. and Peitsch, D. and Hennings, Holger (2016) A low Speed Compressor Test Rig for Flutter Investigations. In: Proceedings of the ASME Turbo Expo. ASME Turbo Expo, 13.-17. Juni 2016, Seoul, South Korea.

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ABSTRACT A test facility for aereolastic investigations has been installed at the chair of Aero Engines at the Technische Universit¨at Berlin.The test rig provides data for tool and code validation and is used for basic aeroelastic experiments. It is a low speed wind tunnel which allows free and controlled flutter testing. The test section contains a linear cascade with eleven compressor blades. Nine of them are elastically suspended. The paper presents a detailed description of the test facility, results to evaluate the overall flow quality and an aeroelastic model to predict the flutter velocity and critical interblade phase angles. Hot-wire anemometry has been applied to examine the inlet flow for several Mach- and Reynolds numbers. The results show small turbulence intensities. The blade surface pressure distribution and the flow field of the blade’s suction and pressure side has been accessed by oil flow visualization.

Item URL in elib:https://elib.dlr.de/111990/
Document Type:Conference or Workshop Item (Speech)
Title:A low Speed Compressor Test Rig for Flutter Investigations
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Malzacher, L.TU BerlinUNSPECIFIED
Hennings, HolgerHolger.Hennings (at) dlr.deUNSPECIFIED
Journal or Publication Title:Proceedings of the ASME Turbo Expo
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:flutter testing, low speed compressor, turbulances
Event Title:ASME Turbo Expo
Event Location:Seoul, South Korea
Event Type:international Conference
Event Dates:13.-17. Juni 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation methods (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulation
Deposited By: Varela, Marie
Deposited On:06 Jun 2017 09:08
Last Modified:09 Feb 2018 12:04

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