The present paper illustrates the main results of an experimental campaign conducted in the Thermal Cavitation Tunnel of the Cavitating Pump Rotordynamic Test Facility (CPRTF) at Centrospazio/Alta S.p.A. Experiments were carried out on a NACA 0015 hydrofoil at various incidence angles, cavitation numbers, and freestream temperatures, in order to investigate the characteristics of cavitation instabilities and the impact of thermal cavitation effects. Measured cavity length, surface pressure coefficients, and unsteady pressure spectra are in good agreement with the data available in the open literature and suggest the existence of a strong correlation between the onset of the various forms of cavitation and instabilities, the thermal cavitation effects, and the effects induced by the presence of the walls of the tunnel. Further analytical investigations are planned in order to provide a better interpretation of the above results.
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March 2006
Technical Papers
Thermal Cavitation Experiments on a NACA 0015 Hydrofoil
Cristina Bramanti,
Cristina Bramanti
Project Engineer
Alta S.p.A.
, Via Gherardesca 5, 56121 Pisa, Italy
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Emilio Rapposelli,
Emilio Rapposelli
Senior Engineer
Alta S.p.A.
, Via Gherardesca 5, 56121 Pisa, Italy
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Luca d’Agostino
Luca d’Agostino
Professor
Department of Aerospace Engineering,
University of Pisa
, Via G. Caruso, 56100 Pisa, Italy
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Angelo Cervone
Project Manager
Cristina Bramanti
Project Engineer
Alta S.p.A.
, Via Gherardesca 5, 56121 Pisa, Italy
Emilio Rapposelli
Senior Engineer
Alta S.p.A.
, Via Gherardesca 5, 56121 Pisa, Italy
Luca d’Agostino
Professor
Department of Aerospace Engineering,
University of Pisa
, Via G. Caruso, 56100 Pisa, ItalyJ. Fluids Eng. Mar 2006, 128(2): 326-331 (6 pages)
Published Online: September 13, 2005
Article history
Received:
August 2, 2004
Revised:
September 13, 2005
Citation
Cervone, A., Bramanti, C., Rapposelli, E., and d’Agostino, L. (September 13, 2005). "Thermal Cavitation Experiments on a NACA 0015 Hydrofoil." ASME. J. Fluids Eng. March 2006; 128(2): 326–331. https://doi.org/10.1115/1.2169808
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