The cavitating behavior of a four blade inducer tested in the LML laboratory large test facility is considered in the present paper. Experimental investigations based on unsteady pressure measurements and records from a six components balance mounted on the inducer shaft are performed. Spectral analysis of the signals enables to detect several characteristic frequencies related to unbalanced two-phase flow patterns. The objective of the present paper is the understanding of the physical phenomena associated to these frequencies. Therefore, wavelet decomposition, flow visualizations, and direct analysis of the high-frequency force, moment, and pressure signals are applied. Results at nominal flow rate only are considered. Not only classical unbalanced cavitation patterns, but also unexpected flow organizations are discussed.
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ASME 2009 Fluids Engineering Division Summer Meeting
August 2–6, 2009
Vail, Colorado, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4373-4
PROCEEDINGS PAPER
Analysis of Cavitation Instabilities in a Four Blade Inducer
O. Coutier-Delgosha,
O. Coutier-Delgosha
Arts et Metiers ParisTech, Lille, France
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A. Dazin,
A. Dazin
Arts et Metiers ParisTech, Lille, France
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G. Caignaert,
G. Caignaert
Arts et Metiers ParisTech, Lille, France
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G. Bois
G. Bois
Arts et Metiers ParisTech, Lille, France
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O. Coutier-Delgosha
Arts et Metiers ParisTech, Lille, France
A. Dazin
Arts et Metiers ParisTech, Lille, France
G. Caignaert
Arts et Metiers ParisTech, Lille, France
G. Bois
Arts et Metiers ParisTech, Lille, France
Paper No:
FEDSM2009-78406, pp. 361-370; 10 pages
Published Online:
July 26, 2010
Citation
Coutier-Delgosha, O, Dazin, A, Caignaert, G, & Bois, G. "Analysis of Cavitation Instabilities in a Four Blade Inducer." Proceedings of the ASME 2009 Fluids Engineering Division Summer Meeting. Volume 2: Fora. Vail, Colorado, USA. August 2–6, 2009. pp. 361-370. ASME. https://doi.org/10.1115/FEDSM2009-78406
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