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Low Engine Order NGV Only Tests at DLR

Rehder, H.-J. and Kost, F. and Kessar, A. (2003) Low Engine Order NGV Only Tests at DLR. DLR-Interner Bericht. 225-2003 A 06, 47 S.

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As part of the Brite/EuRam project "Aeroelastic Design of Turbine Blades II" (ADTurBII) low engine order (LEO) stator only experiments at 3 stator configurations with 43 nozzle guide vanes have been carried out in the windtunnel for rotating cascades (RGG) at DLR in Göttingen. Static pressures on the blade surfaces and total pressures in the stator exit flow fields were measured at different radial locations for a subsonic (0.85) and a supersonic (1.05) isentropic exit Mach number. Additional 2D-velocity vectors and turbulence quantities in the downstream flow fields have been detected by a Laser-2-Focus anemometer (L2F). Flow field measurements are covering at least one period of the low engine order (up to 9 stator pitches). Results in the exit flow fields were Fourier-analysed in order to determine their harmonic contents. Local homogeneous (pitchwise mixed out) flow field quantities were calculated from the inhomogeneous values

Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=2003,
Title:Low Engine Order NGV Only Tests at DLR
AuthorsInstitution or Email of Authors
Number of Pages:47
Keywords:windtunnel for rotating cascades, low engine order, nozzle guide vanes, coolant variation, throat area variation, transonic flow, blade surface pressures, wake traverses, Laser velocimetry L2F, pitot probe
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Turbine Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 13:23

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