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TECHNICAL PAPERS

Investigation of an Inversely Designed Centrifugal Compressor Stage—Part I: Design and Numerical Verification

[+] Author and Article Information
M. Zangeneh

Department of Mechanical Engineering, University College London, London, UK

M. Schleer, S. S. Hong, R. S. Abhari

Turbomachinery Laboratory, Swiss Federal Institute of Technology, Zurich, Switzerland

F. Pløger

HV Turbo, Helsingør, Denmark

C. Roduner

ABB Turbo Systems, Baden, Switzerland

B. Ribi

MAN turbomaschinen AG, Hardstrasse 319, Ch 8005 Zurich, Switzerland

J. Turbomach 126(1), 73-81 (Mar 26, 2004) (9 pages) doi:10.1115/1.1645868 History: Received December 01, 2002; Revised March 01, 2003; Online March 26, 2004
Copyright © 2004 by ASME
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References

Drtina, P., Dalbert, P., Rutti, K., and Schachenmann, A., 1993, “Optimization of a Diffuser With Splitter by Numerical Simulation,” ASME Paper 93-GT-110.
Zangeneh,  M., 1991, “A Compressible Three Dimensional Blade Design Method for Radial and Mixed Flow Turbomachinery Blades,” Int. J. Numer. Methods Fluids, 13, pp. 599–624.
Zangeneh, M., 1998, “On 3D Inverse Design of Centrifugal Compressor Impellers With Splitter Blades,” ASME Paper 98-GT-507.
Zangeneh,  M., Goto,  A., and Harada,  H., 1998, “On the Design Criteria for Suppression of Secondary Flows in Centrifugal and Mixed Flow Impellers,” ASME J. Turbomach., 120, pp. 723–735.
Zangeneh,  M., Goto,  A., and Harada,  H., 1999, “On the Role of Three-Dimensional Inverse Design Methods in Turbomachinery Shape Optimization,” Proc. IMECHE Part C, J. Mech. Eng. Sci., 213(C1), pp. 27–42.
Zangeneh, M., Vogt, D., and Roduner, C., 2002, “Improving a Vaned Diffuser for a Given Centrifugal Impeller by 3D Inverse Design,” ASME Paper GT-2002-30621.
Schleer, M., Hong, S., Zangeneh, M., Roduner, C., Ribi, B, Ploger, F., and Abhari, R. S. 2004, “Investigation of an Inversely Designed Centrifugal Compressor Stage–Part II: Experimental Investigations,” ASME J. Turbomach., 126 , pp. 82–90.
Hunziker, R., and Gyarmathy, G., 1993, “The Operational Stability of a Centrifugal Compressor and Its Dependence on the Characteristics of the Sub-Components,” ASME Paper 93-GT-284.
Dalbert, P., Gyarmathy, G., and Sebestyen, A., 1993, “Flow Phenomena in Vaned Diffuser of a Centrifugal Stage,” ASME Paper 93-GT-53.
Roduner, C., Koppel, P., Kupferschmied, P., and Gyarmathy, G., 1998, “Comparison of Measurement Data at the Impeller Exit of Centrifugal Compressor Measured With Both Pneumatic and Fast Response Probes,” ASME Paper 98-GT-241.
Dawes, W. N., 1988, “The Development of a 3D Navier-Stokes Solver for Application to all Types of Turbomachinery,” ASME Paper 88-GT-70.
TASCflow, 1999, Version 2.10 documentation, AEA Technology Ltd., London.
Goto,  A., and Zangeneh,  M., 2002, “Hydrodynamic Design of Pump Diffuser Using Inverse Design Method and CFD,” ASME J. Fluids Eng., 124, pp. 319–328.
Roduner, C., 2002, private communications.
Ribi, B, 2002, private communications.

Figures

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The meridional mesh used for inverse design of the inverse designed impeller
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Specified blade loading (or ∂rV̄θ/∂m) distribution
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Comparison of blade angles (measured from radial)
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Predicted von Mises stresses on the inverse impeller
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Predicted relative tip gap of the splitter blade
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Comparison of predicted total pressure ratio at r*=1.05-Mu2=0.9
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Comparison of predicted total efficiency at r*=1.05-Mu2=0.9
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Comparison of predicted relative Mach number near the trailing edge plane—Mu2=0.9
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Predicted velocity vectors in the tip clearance region
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Comparison of manufactured geometry and initial geometry
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Comparison of measured and predicted meridional velocity for the inverse impeller at r*=1.05 at Mu2=0.75
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Comparison of measured and predicted tangential velocity for the inverse impeller at r*=1.05 at Mu2=0.75
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Comparison of measured and predicted total pressure for the inverse impeller at r*=1.05 at Mu2=0.75
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Comparison of predicted total pressure at r*=1.05
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Comparison of predicted tangential velocity—r*=1.05
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Stagnation pressure at r*=1.05 for redesigned inverse impeller—Mu2=0.75 (same contour intervals as Fig. 15)

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