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Numerical study of self-propulsion performance of a twin-screw cruise ship equipped with podded propellers
Citation Link: https://doi.org/10.15480/882.9345
Publikationstyp
Conference Paper
Date Issued
2024-04-04
Sprache
English
Author(s)
Computational Marine Hydrodynamics Lab (CMHL), School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China
China Ship Scientific Research Center (CSSRC), Wuxi, China
Shanghai Jiao Tong University, Shanghai, China
TORE-DOI
Start Page
99
End Page
106
Citation
8th International Symposium on Marine Propulsors (smp 2024)
Contribution to Conference
Publisher
Norwegian University of Science and Technology, Department of Marine Technology
ISSN
2414-6129
ISBN
978-82-691120-5-4
Peer Reviewed
true
The interactions between a ship's hull and podded propulsors differ significantly from traditional hullpropeller interactions, leading to distinct influences on self-propulsion performance. In this study, we employed an in-house Computational Fluid Dynamics (CFD) solver, naoe-FOAM-SJTU, to predict the self-propulsion capabilities of a twin-screw cruise ship equipped with podded propulsors. Dynamic overset grid method is used to deal with the complex motions of ship hull-propeller system. The podded propulsor is simplified by introducing a gap between geometry of rotating propeller and pod for easy distribution of overset grids. Open water simulations were firstly conducted and compared with the experiment. Self-propulsion calculations were then carried out based on fully discretized approach and simulation results, such as thrust and torque, agree well with the available experimental data. Flow visualizations, such as pressure distribution on hull surface and podded propulsors, wake flow, vortical structures, etc. were presented and analyzed. The results showed that the present numerical approach is suitable and reliable in predicting the self-propulsion performance of ship selfpropulsion with podded propellers.
Subjects
Ship self-propulsion
computational fluid dynamics
overset grid method
podded propellers
ship hull propeller interaction
DDC Class
620: Engineering
Publication version
publishedVersion
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Name
Wang-NumericalStudyOfSelfpropulsionPerformanceOfATwinscrewCruiseShipE-1165-1-final.pdf
Type
Main Article
Size
1.35 MB
Format
Adobe PDF