University of Tasmania
Browse

File(s) under permanent embargo

On the design and resistance prediction of large medium-speed catamarans

conference contribution
posted on 2023-05-23, 07:30 authored by Haase, M, Davidson, G, Giles Thomas, Jonathan BinnsJonathan Binns, Neil Bose

Medium-speed catamarans are under development as a new class of vessels to meet requirements for highly efficient sea transportation with a low environmental impact. A reduction in service speed and an increase in deadweight will lead to a high transport efficiency. Compared to current high-speed catamarans, these new vessels will operate at a transitional speed range between those of high-speed craft and conventional displacement ships.

In this paper, design guidelines to choose appropriate hull form parameters for medium speed catamarans with minimum resistance are derived and a preliminary design is made. Most important these vessels will operate at Froude numbers of Fr = 0.35 and have a relatively low prismatic coefficient of Cp ¡Ö 0.5 in conjunction with a low transom immersion. To correctly predict the calm water resista.nce, different methods to predict the calm water resistance of such vessels are discussed, whereas viscous free-surface flow simulat ions are most promising. It is shown that they are capable of predicting the hydrodynamic behaviour of mediumspeed catamarans, such as drag force , trim and sinkage within an acceptable range of accuracy.

History

Publication title

Proceedings of the 8th International Conference on High-Performance Marine Vehicles

Editors

V Bertram

Pagination

1-9

Department/School

Australian Maritime College

Publisher

University of Duisburg-Essen Institute of Ship Technology, Ocean Engineering and Transport Systems (ISMT)

Place of publication

Duisburg

Event title

8th International Conference on High-Performance Marine Vehicles

Event Venue

Duisburg

Date of Event (Start Date)

2012-09-27

Date of Event (End Date)

2012-09-28

Repository Status

  • Restricted

Socio-economic Objectives

Domestic passenger water transport (e.g. ferries)

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC