Izvorni znanstveni članak
https://doi.org/10.21278/brod70104
NUMERICAL SIMULATION OF THE CAVITATING FLOW AROUND MARINE CO-ROTATING TANDEM PROPELLERS
Boucetta Djahida
; Aeronautics and propulsive systems laboratory Department of marine engineering, Faculty of mechanical engineering University of Sciences and Technology of Oran, USTO-MB, Oran, Algeria
Imine Omar
; Aeronautics and propulsive systems laboratory Department of marine engineering, Faculty of mechanical engineering University of Sciences and Technology of Oran, USTO-MB, Oran, Algeria
Sažetak
In the present paper, a numerical simulation has been carried out to determine the hydrodynamic characteristics in cavitating viscous flow of the conventional INSEAN E779A propeller in single and tandem configuration by using Singhal et al. cavitation model implemented in FLUENT Software. Firstly, calculations have been carried out on single E779A propeller in non-cavitating and cavitating flows. The computed performances have shown good agreement with experimental data. Next, the numerical approach has been applied in loaded conditions to the case of tandem propeller configurations with respectively 0.2 and 0.6 axial displacement. Results reveal that cavitation is qualitatively well predicted and the cavitation area is rather more pronounced on the fore propeller. Te use of tandem co-rotating propeller in loaded conditions is highlighted.
Ključne riječi
Numerical simulation; marine tandem co-rotating propellers; cavitating viscous flow; Singhal et al. cavitation model; open water performances
Hrčak ID:
215069
URI
Datum izdavanja:
31.3.2019.
Posjeta: 2.618 *