Analysis of the propeller wake evolution by pressure and velocity phase measurements (Articolo in rivista)

Type
Label
  • Analysis of the propeller wake evolution by pressure and velocity phase measurements (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00348-006-0171-4 (literal)
Alternative label
  • Felli, Mario (1); Di Felice, Fabio (1); Camussi, Roberto (2); Guj, Giulio (2) (2006)
    Analysis of the propeller wake evolution by pressure and velocity phase measurements
    in Experiments in fluids (Print); SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Felli, Mario (1); Di Felice, Fabio (1); Camussi, Roberto (2); Guj, Giulio (2) (literal)
Pagina inizio
  • 441 (literal)
Pagina fine
  • 451 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 41 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) CNR-INSEAN, Roma - Istituto Nazionale per Studi ed Esperienze di Architettura Navale; (2) Dipartimento di Ingegneria Meccanica e Industriale, Università Roma Tre, Via della Vasca Navale 79, 00146, Italy; (literal)
Titolo
  • Analysis of the propeller wake evolution by pressure and velocity phase measurements (literal)
Abstract
  • In the present study an experimental analysis of the velocity and pressure fields behind a marine propeller, in non-cavitating regime is reported. Particle image velocimetry measurements were performed in phase with the propeller angle, to investigate the evolution of the axial and the radial velocity components, from the blade trailing edge up to two diameters downstream. In phase pressure measurements were performed at four radial and eight longitudinal positions downstream the propeller model at different advance ratios. Pressure data, processed by using slotting techniques, allowed reconstructing the evolution of the pressure field in phase with the reference blade position. In addition, the correlation of the velocity and pressure signals was performed. The analysis demonstrated that, within the near wake, the tip vortices passage is the most important contribution in generating the pressure field in the propeller flow. The incoming vortex breakdown process causes a strong deformation of the hub vortex far downstream of the slipstream contraction. This process contributes to the pressure generation at the shaft rate frequency. (literal)
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