0
TECHNICAL PAPERS

On the Development and Application of the Fast-Response Aerodynamic Probe System in Turbomachines—Part 3: Comparison of Averaging Methods Applied to Centrifugal Compressor Measurements

[+] Author and Article Information
Pascal Köppel, Christian Roduner, Peter Kupferschmied, Georg Gyarmathy

Turbomachinery Laboratory, Institute of Energy Technology, ETH—Swiss Federal Institute of Technology, 8092 Zurich, Switzerlande-mail: http://www.lsm.iet.ethz.ch/lsm/

J. Turbomach 122(3), 527-535 (Feb 01, 1999) (9 pages) doi:10.1115/1.1303820 History: Received February 01, 1999
Copyright © 2000 by ASME
Your Session has timed out. Please sign back in to continue.

References

Traupel, W., 1988, Thermische Turbomaschinen I, Springer-Verlag, Berlin, p. 307.
Dean,  R. C., and Senoo,  Y., 1960, “Rotating Wakes in Vaneless Diffusers,” ASME J. Basic Eng., 82, No. 3.
Eckardt,  D., 1975, “Instantaneous Measurements in the Jet-Wake Discharge Flow of a Centrifugal Compressor Impeller,” ASME J. Eng. Power, 97, No. 3.
Adamczyk,  J. J., Mulac,  R. A., and Celestina,  M. L., 1986, “A Model for Closing the Inviscid Form of the Average-Passage Equation System,” ASME J. Turbomach., 108, pp. 180–186.
Gerhard,  P. M., 1981, “Averaging Methods for Determining the Performance of Large Fans From Field Measurements,” ASME J. Eng. Power, 103, No. 2.
Kreitmeier, F., and Juvet, P. J., 1997, “Demonstration of a Balance-Based Procedure for Time-Averaging and Modeling of Compressible Three-Dimensional Unsteady Turbulent Flows.”
Ng,  W. F., and Epstein,  A. H., 1985, “Unsteady Losses in Transonic Compressors,” ASME J. Eng. Gas Turbines Power, 107, pp. 345–353.
Ruck, G., 1989, “Verfahren zur instationären Geschwindigkeits-und Turbulenzmessung mit einer pneumatisch messenden Keilsonde,” Mitteilungen des Institutes No. 33, Institut für Thermische Strömungsmaschinen und Maschinenlaboratorium der Universität Stuttgart, Stuttgart, Germany.
Roduner,  C., Kupferschmied,  P., Köppel,  P., and Gyarmathy,  G., 2000, “On the Development and Application of the Fast-Response Aerodynamic Probe System for Turbomachines—Part 2: Flow, Surge, and Stall in a Centrifugal Compressor,” ASME J. Turbomach., 122, pp. 517–526.
Dzung, L. S., 1967, “Mittelungsverfahren in der Theorie der Schaufelgitter,” Brown Boveri Mitteilungen.
Dzung, L. S., 1970, “Flow Research on Blading,” Proc. Symposium of Flow Research on Blading.
Roduner, C., Köppel, P., Kupferschmied, P., and Gyarmathy, G., 1998, “Comparison of Measurement Data at the Impeller Exit of a Centrifugal Compressor Measured with both Pneumatic and Fast-Response Probes,” ASME Turbo Expo’ 98, 98-GT-241, Stockholm.
Hunziker, R., 1993, “Einfluss der Diffusorgeometrie auf die Instabilitätsgrenze des Radialverdichters,” PhD thesis No. 10252, ETH Zürich, Switzerland.
Kupferschmied,  P., Köppel,  P., Roduner,  C., and Gyarmathy,  G., 2000, “On the Development and Application of the Fast-Response Aerodynamic Probe System for Turbomachines—Part 1: The Measurement System,” ASME J. Turbomach., 122, pp. 505–516.
Gossweiler, C., Humm, H. J., and Kupferschmied, P., 1992, “Development of a System for Aerodynamic Fast-Response Probe Measurements,” Proc. of the 18th Congress of Int. Council of the Aeronautic Sciences (ICAS), Beijing.
Gossweiler,  C., Kupferschmied,  P., and Gyarmathy,  G., 1995, “On Fast-Response Probes: Part I—Technology, Calibration and Application to Turbomachinery,” ASME J. Turbomach., 117, pp. 611–617.
Kupferschmied, P., Gossweiler, C., and Gyarmathy, G., 1994, “Aerodynamic Fast-Response Probe Measurement Systems: State of Development, Limitation and Future Trends,” Proc. 12th Symposium on Measuring Techniques for Transonic and Supersonic Flows in Cascades and Turbomachines, Prague, Czech Republic.
Kupferschmied, P., 1998, “Zur Methodik zeitaufgelöster Strömungssondenmessungen in Verdichtern and Turbinen,” PhD thesis No. 12774, ETH Zürich, Switzerland.
Stahlecker, D., and Gyarmathy, G., 1998, “Investigations of Turbulent Flow in a Centrifugal Compressor Vaned Diffuser by Three-Component Laser Velocimetry,” ASME Paper No. 98-GT-300.
Casartelli,  E., Saxer,  A. P., and Gyarmathy,  G., 1999, “Numerical Flow Analysis in a Subsonic Vaned Radial Diffuser With Leading Edge Redesign,” ASME J. Turbomach., 121, pp. 119–125.
Herter, D., Chrisander, O., and Gossweiler, C., 1992, “AW-System—An Interactive Environment for the Evaluation of Large Time Series,” Proc. 11th Symposium on Measuring Techniques for Transonic Flows in Cascades and Turbomachines, Munich, Germany.
Gizzi, W., Roduner, C., Stahlecker, D., Köppel, P., and Gyarmathy, G., 1999, “Time Resolved Measurements With Fast-Response Probes and Laser-Doppler-Velocimetry at the Impeller Exit of a Centrifugal Compressor—A Comparison of Two Measurement Techniques,” Proc. 3rd European Conference on Turbomachinery.
Humm,  H. J., Gossweiler,  C., and Gyarmathy,  G., 1995, “On Fast-Response Probes, Part 2: Aerodynamic Design Studies,” ASME J. Turbomach., 117, pp. 618–624.

Figures

Grahic Jump Location
Cross-sectional view of the centrifugal compressor with fast-response aerodynamic probe
Grahic Jump Location
Top view of the diffuser showing probe position I
Grahic Jump Location
Example: Compression of the time-resolved absolute flow angle αE into the time-averaged distribution of αE over the traverse
Grahic Jump Location
Revolution ensemble-averaged pressure p̃1(t) during one impeller revolution (deterministic part of the pressure fluctuation) and the stochastic part represented through the ensemble standard deviation. Running conditions: BP; outlet of impeller, traverse position z/b=0.18.
Grahic Jump Location
Averaged deterministic and stochastic pressure fluctuation over traverse position (z/b) obtained from different ensemble-averaging strategies. Running conditions: BP; impeller outlet, position I.
Grahic Jump Location
Time-mean velocity profile and averaged deterministic radial fluctuations over traverse position (z/b). Running conditions: BP.
Grahic Jump Location
Stage work aa across the traverse obtained from different averaging methods. Running conditions: BP.
Grahic Jump Location
Radial velocity across the traverse obtained from different averaging methods. Running conditions: BP.
Grahic Jump Location
Static pressure across the traverse obtained from different averaging methods. Running conditions: BP.
Grahic Jump Location
Stage work during a MS period obtained from different averaging methods. Running conditions: MS.
Grahic Jump Location
Radial velocity during a MS period obtained with different averaging methods. Running conditions: MS.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In