The cavitation behavior of a four-blade rocket engine turbopump inducer was simulated by the CFD code Fine/TurboTM. The code was modified to take into account a cavitation model based on a homogeneous approach of cavitation, coupled with a barotropic state law for the liquid/vapor mixture [1–4]. In the present study, the numerical model of unsteady cavitation was applied to a four-blade cascade drawn from the inducer geometry. Unsteady behavior of cavitation sheets attached to the inducer blade suction side depends on the flow rate and cavitation number σ. Numerical simulations of the transient evolution of cavitation on the blade cascade were performed for nominal flow rate and different cavitation numbers, taking into account simultaneously the four blade-to-blade channels. Depending on the flow parameters, steady or unsteady behaviors spontaneously take place. In unsteady cases, sub synchronous or super synchronous regimes were observed. Some mechanisms responsible for the development of these instabilities are proposed and discussed.
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ASME 2005 Fluids Engineering Division Summer Meeting
June 19–23, 2005
Houston, Texas, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4198-7
PROCEEDINGS PAPER
Numerical Analysis of Cavitation Instabilities In Inducer Blade Cascade
Benoiˆt Pouffary,
Benoiˆt Pouffary
Centre National d’Etudes Spatiales, Evry, France
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Regiane Fortes Patella,
Regiane Fortes Patella
INPG - LEGI, Grenoble, France
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Jean-Luc Reboud
Jean-Luc Reboud
University of Grenoble, Grenoble, France
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Benoiˆt Pouffary
Centre National d’Etudes Spatiales, Evry, France
Regiane Fortes Patella
INPG - LEGI, Grenoble, France
Jean-Luc Reboud
University of Grenoble, Grenoble, France
Paper No:
FEDSM2005-77357, pp. 1441-1448; 8 pages
Published Online:
October 13, 2008
Citation
Pouffary, B, Fortes Patella, R, & Reboud, J. "Numerical Analysis of Cavitation Instabilities In Inducer Blade Cascade." Proceedings of the ASME 2005 Fluids Engineering Division Summer Meeting. Volume 1: Symposia, Parts A and B. Houston, Texas, USA. June 19–23, 2005. pp. 1441-1448. ASME. https://doi.org/10.1115/FEDSM2005-77357
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