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Hydrodynamic hull form design space exploration of large medium-speed catamarans using full-scale CFD
journal contribution
posted on 2023-05-18, 15:27 authored by Haase, M, Jonathan BinnsJonathan Binns, Neil Bose, Davidson, G, Thomas, G, Friezer, SLarge medium-speed catamarans are a new class of vessel currently under development as fuel-efficient ferries for sustainable fast sea transportation. Appropriate data to derive design guidelines for such vessels are not available and therefore a wide range of demihull slenderness ratios were studied to investigate the design space for fuel-efficient operation. Computational fluid dynamics for viscous free-surface flow simulations were utilised to investigate resistance properties of different catamaran configurations having a similar deadweight at light displacement, but with lengths ranging from 110 m to 190 m. The simulations were conducted at full-scale Reynolds numbers (log(Re) = 8.9 – 9.6) and Froude numbers ranged from Fr = 0.25 to 0.49. Hulls of 130 m and below had high transport efficiency below 26 knots and in light loading conditions while hulls of 150 m and 170 m showed benefits for heavier displacement cases and speeds up to 35 knots. Furthermore, the study concluded that the lowest drag was achieved with demihull slenderness ratios between 11 and 13
History
Publication title
International Journal of Maritime EngineeringVolume
157Issue
Part A3Pagination
A161-A174ISSN
1479-8751Department/School
Australian Maritime CollegePublisher
Royal Institution of Naval ArchitectsPlace of publication
United KingdomRights statement
Copyright 2015 The Royal Institution of Naval ArchitectsRepository Status
- Restricted