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TECHNICAL PAPERS

An Experimental and Numerical Investigation into the Mechanisms of Rotating Instability

[+] Author and Article Information
Joachim März

STN Atlas Elektronik GmbH, Bremen 28305, Germany

Chunill Hah

NASA Glenn Research Center, Cleveland, OH 44135e-mail: chunhill.hah@grc.nasa.gov

Wolfgang Neise

DLR, Institute of Propulsion Technology, Berlin, Germany

J. Turbomach 124(3), 367-374 (Jul 10, 2002) (8 pages) doi:10.1115/1.1460915 History: Received February 12, 2001; Revised November 07, 2001; Online July 10, 2002
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References

Kameier,  F., and Neise,  W., 1997, “Experimental Study of Tip Clearance Losses and Noise in Axial Turbomachines and Their Reduction,” ASME J. Turbomach., 119, pp. 460–471.
Liu, J.M., Holste, F., and Neise, W., 1996, “On the Azimuthal Mode Structure of Rotating Blade Flow Instabilities in Axial Turbomachines,” AIAA Pap., 96-1741, 2nd AIAA/CEAS Aeroacoustics Conference.
März,  J., Gui,  X., Neuhaus,  L., and Neise,  W., “Circumferential Structure of Rotating Instability Under Variation of Flow Rate and Solidity,” VDI-Ber., 1425, pp. 189–198.
Baumgartner, M., Kameier, F., and Hormouziadis, J., 1995, “Non Engine Order Blade Vibration in a High Speed Compressor,” ISABE 95-7094, Twelfth Int. Symp. on Airbreathing Engines, Melbourne, Australia.
Müller, R, and Mailach, R., 1998 “Experimentelle Untersuchung von Verdichterinstabilitäten am Niedergeschwindigkeitsverdichter Dresden,” VDI-Berichte 1425, pp. 167-176, VDI-GET-Tagung Turbokompressoren im industriellen Einsatz, Hannover, Germany.
Hah,  C., 1984, “A Navier-Stokes Analysis of Three-Dimensional Turbine Flows Inside Turbine Blade Rows at Design and Off-Design Conditions,” ASME J. Eng. Gas Turbines Power, 106, pp. 421–429.
Hah,  C., 1987, “Calculation of Three-Dimensional Viscous Flows in Turbomachinery with an Implicit Relaxation Method,” AIAA J. Propul. Power, 3, No. 5, pp. 415–422.
Cho, N.-H., Liu, X., Rodi, W., and Schonung, B., 1992, “Calculation of Wake-Induced Unsteady Flow in a Turbine Cascade,” ASME Paper 92-GT-306.
Hah, C., Puterbaugh, S.L., and Copenhaver, W.W., 1993, “Unsteady Aerodynamic Phenomena in a Transonic Compressor Stage,” AIAA Pap., 93-1868.
Hah, C., Schulze, R., Wagner, S., and Hennecke, D. K., 1999, “Numerical and Experimental Study for the Short Wavelength Stall Inception in a Low-Speed Axial Compressor,” Proc. Fourteenth ISABE Conference, IS-234.
Zierke, W.C., Farrell, K.J., and Straka, W.A., 1994, “Measurements of Tip Clearance Flow for a High Reynolds Number Axial-Flow Rotor: Part 1—Flow Visualization,” ASME Paper 94-GT-453.
Mailach, R., Lehmann, I., and Vogeler, K., 2000, “Rotating Instabilities in an Axial Compressor Originating from the Fluctuating Blade Tip Vortex,” ASME Paper 2000-GT-506.
Smith, L. H., 2001, private communication.
Smith, L.H., 1970, “Casing Boundary Layers in Multistage Axial-Flow Compressors,” Flow Research and Blading, Elsevier, Amsterdam The Netherlands.
Koch,  C. C., 1981, “Stalling Pressure Rise Capability of Axial Compressor Stage,” ASME J. Eng. Power, 98, pp. 411–424.

Figures

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Wall pressure spectrum with rotating instability components n=1400/min,BPF=560 Hz
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Fan characteristics at different tip clearances
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Position and layout of the access window
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Time-lapse plots of casing wall pressure at different tip clearances
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Ensemble averages and standard deviation plots for varying tip clearance and selected operating points
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Time history of blade pressure signal
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Sorting algorithm for double phase averaging
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Relative frame pressure field during one cycle of rotating instability
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Calculated time history of blade pressure
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Calculated standard deviation of pressure on casing
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Calculated instantaneous pressure field during one instability cycle
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Calculated instantaneous velocity vectors during one instability cycle
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Calculated instantaneous streamlines during one instability cycle
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Structure of instantaneous flow field
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Flow field near leading edge

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