This paper presents numerical simulations and experimental investigations of the cavitating flow through a centrifugal pump impeller of low specific speed. The experimental research was carried out at the Pfleiderer-Institute of the Technical University of Braunschweig, while the numerical simulations were performed at the Institute for Hydraulic Machinery and Plants at the Technical University of Munich (LHM). The cavitation model used is based on bubble dynamics and is able to describe the complicated and transient growth and collapse of the cavitation bubbles. The model has been implemented in the 3D CFD-code CNS3D developed at the LHM. The CNS3D-code has been applied to simulate the cavitating flow through a centrifugal pump impeller. The computed pump head, incipient NPSH and three-percent head drop are compared to the experimental data. Also the pressure distributions measured on the blades are compared with the computed ones. Finally, the numerically investigated void fraction distributions are shown in comparison with pictures of the cavitation zones on the blade.
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ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
July 14–18, 2002
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3615-0
PROCEEDINGS PAPER
Numerical and Experimental Investigations of the Cavitating Flow in a Centrifugal Pump Impeller Available to Purchase
Moritz Frobenius,
Moritz Frobenius
Technical University of Munich, Garching, Germany
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Rudolf Schilling,
Rudolf Schilling
Technical University of Munich, Garching, Germany
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Jens Friedrichs,
Jens Friedrichs
Technical University of Braunschweig, Braunschweig, Germany
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Gu¨nter Kosyna
Gu¨nter Kosyna
Technical University of Braunschweig, Braunschweig, Germany
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Moritz Frobenius
Technical University of Munich, Garching, Germany
Rudolf Schilling
Technical University of Munich, Garching, Germany
Jens Friedrichs
Technical University of Braunschweig, Braunschweig, Germany
Gu¨nter Kosyna
Technical University of Braunschweig, Braunschweig, Germany
Paper No:
FEDSM2002-31006, pp. 361-368; 8 pages
Published Online:
February 24, 2009
Citation
Frobenius, M, Schilling, R, Friedrichs, J, & Kosyna, G. "Numerical and Experimental Investigations of the Cavitating Flow in a Centrifugal Pump Impeller." Proceedings of the ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. Volume 1: Fora, Parts A and B. Montreal, Quebec, Canada. July 14–18, 2002. pp. 361-368. ASME. https://doi.org/10.1115/FEDSM2002-31006
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