The paper illustrates the results of an experimental campaign conducted in the CPRTF (Cavitating Pump Rotordynamic Test Facility) at ALTA S.p.A., aimed at characterizing the rotordynamic forces acting on a whirling four-bladed, tapered-hub, variable-pitch inducer, designated as DAPAMITO4. The roles of the imposed whirl motion of the rotor, flow coefficient, cavitation number and liquid temperature have been investigated. A novel experimental technique, consisting in measuring the continuous spectra of the forces as functions of the whirl ratio, has been developed and validated. This technique gives the possibility of extracting valuable information from the experiments by clearly identifying the qualitative and quantitative behavior of the forces, and is therefore useful to catch the unlikely foreseeable complexity of the rotordynamic forces and their consequences on the stability of axial inducers.
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ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
July 24–29, 2011
Hamamatsu, Japan
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4440-3
PROCEEDINGS PAPER
Continuous Spectrum of the Rotordynamic Forces on a Four Bladed Inducer Available to Purchase
Luca d’Agostino
Luca d’Agostino
University of Pisa, Pisa, Italy
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Lucio Torre
Alta S.p.A., Pisa, Italy
Angelo Pasini
Alta S.p.A., Pisa, Italy
Angelo Cervone
Alta S.p.A., Pisa, Italy
Luca d’Agostino
University of Pisa, Pisa, Italy
Paper No:
AJK2011-06042, pp. 211-222; 12 pages
Published Online:
May 25, 2012
Citation
Torre, L, Pasini, A, Cervone, A, & d’Agostino, L. "Continuous Spectrum of the Rotordynamic Forces on a Four Bladed Inducer." Proceedings of the ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D. Hamamatsu, Japan. July 24–29, 2011. pp. 211-222. ASME. https://doi.org/10.1115/AJK2011-06042
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