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  4. Design and analysis of a pumpjet propulsor for a ferry ship
 
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Design and analysis of a pumpjet propulsor for a ferry ship

Citation Link: https://doi.org/10.15480/882.9355
Publikationstyp
Conference Paper
Date Issued
2024-04-04
Sprache
English
Author(s)
Gaggero, Stefano  
Università degli Studi di Genova Scuola Politecnica, Genova, Liguria, Italia
Villa, Diego  
Università degli Studi di Genova, Genova, Liguria, Italia
Grassi, Davide  
CETENA S.p.A., Via Ippolito d’Aste 5, 16121 Genoa, Italy
Valdenazzi, Frederica  
CETENA S.p.A., Via Ippolito d’Aste 5, 16121 Genoa, Italy
Felli, Mario  
National Research Council of Italy, Institute of Marine Engineering (CNR-INM), Rome, Italy
Bae, Chanwoo  
BC Ferries, Victoria, British Columbia, Canada
TORE-DOI
10.15480/882.9355
TORE-URI
https://hdl.handle.net/11420/46492
Start Page
107
End Page
116
Citation
8th International Symposium on Marine Propulsors (smp 2024)
Contribution to Conference
8th International Symposium on Marine Propulsors, smp 2024  
Publisher
Norwegian University of Science and Technology, Department of Marine Technology
ISSN
2414-6129
ISBN
978-82-691120-5-4
Peer Reviewed
true
Is Part Of
10.15480/882.9294
The high efficiency of pumpjet propulsors recently favored their application to ships, different to usual high-speed vessels and submarines, to comply with the most recent regulations on efficiency, comfort onboard and noise pollution. In this context, as a part of the activity of the EU funded project SATURN, the design, and the performances of an axial pumpjet are investigated. The pumpjet of current study is designed to replace a conventional propeller of a ferry ship. To this aim a simulation-based design optimization method employing simplified RANSE analyses, synthetic wakes generated using body force distributions and a mixing-plane based coupling between rotor and stator is employed. Main geometrical characteristics (diameter, number of rotor and stator blades) as well as distributions of pitch, chord and camber are handled in the process by a parametric description of the geometry. A genetic algorithm guides towards the Pareto convergence of the designs by requiring the maximization of the propulsive efficiency at the lowest possible cavitation inception index. Fully unsteady RANSE calculations are finally employed to characterize the unsteady performances (thrust and torque) in behind conditions including the cavitation pattern and the induced pressure pulses on the ship stern, and results are discussed and compared to those of the reference conventional propeller.
Subjects
Pumpjet propulsors
Optimization
Unconventional propellers
RANSE
DDC Class
620: Engineering
Publication version
publishedVersion
Lizenz
http://rightsstatements.org/vocab/InC/1.0/
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Gaggero-DesignAndAnalysisOfAPumpjetPropulsorForAFerryShip-1180-1-final.pdf

Type

Main Article

Size

18.09 MB

Format

Adobe PDF

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