Experimental and numerical investigation of blade geometry effect on propeller cavitation and noise
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/329662
Tipus de documentText en actes de congrés
Data publicació2019
EditorCIMNE
Condicions d'accésAccés obert
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Abstract
In this paper, the effects of propeller blade geometry on cavitation and noise
were studied by model tests and numerical simulations. Section thickness distribution, skew and tip
rake are considered. Propeller model tests were carried out in SJTU Cavitation Tunnel. Test results
of open water performance, cavitation inception and noise were compared. Then the hydrodynamic
performances were simulated by solving the Reynolds-averaged Navier- Stokes (RANS)
equations using the Fluent software. The boundary layer grids were set on blades. Numerical
results of open water performance, section pressure distribution and propeller wake flow
field were compared. It is shown that increasing skew can delay cavitation inception, and reduce
the area of sheet and sound pressure level after cavitation occurs; increasing skew near
blade tip can delay tip vortex cavitation inception further at low advance coefficients; thickening
the section near leading edge can delay the suction side and pressure side cavitation inception,
and make cavitation stable when cavitation incepts; tip rake can reduce the strength of
tip vortex, and delay the tip vortex cavitation inception significantly.
CitacióDong, X.-Q.; Wang, Q.; Yang, C.-J. Experimental and numerical investigation of blade geometry effect on propeller cavitation and noise. A: MARINE VIII. "MARINE VIII : proceedings of the VIII International Conference on Computational Methods in Marine Engineering". CIMNE, 2019, p. 371-382. ISBN 978-84-949194-3-5.
ISBN978-84-949194-3-5
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