The University of Southampton
University of Southampton Institutional Repository

Theoretical prediction of the seakeeping characteristics of fast displacement catamarans

Wellicome, J.F., Temarel, P., Molland, A.F. and Hudson, D.A. (1995) Theoretical prediction of the seakeeping characteristics of fast displacement catamarans , Southampton, UK University of Southampton 22pp. (Ship Science Reports, 93).

Record type: Monograph (Project Report)


The increase in the number of high speed craft of all types operating throughout the world that has been seen over the last decade is continuing. With this likely to remain so for the foreseeable future, there is considerable interest in being able to predict the motions of such vessels in a seaway with accuracy.

This report employs both two-dimensional and three-dimensional potential flow analyses to evaluate the hydrodynamic coefficients and responses of high speed displacement catamaran forms. The hullform is based on the NPL round-bilge series, and is considered in three configurations; as a monohull and two catamaran demihull spacings. These hull configurations were investigated in regular head waves at three different forward speeds, corresponding to Froude numbers of 0.2, 0.53 and 0.8.

Hydrodynamic coefficients and heave and pitch responses are presented for all of the configurations examined. Comparisons with experimental data are included and discussed. For one of the catamaran configurations comparisons of pressure measurements at points around the hull are also presented.

The limitations of the theoretical models used are discussed with reference to: a) their treatment of forward speed effects,
b) viscous damping effects around the resonant responses,
c) the effects of changes in hull attitude with forward speed,
d) the modelling of a transom stern, particularly at higher speeds.

PDF 093.pdf - Version of Record
Download (588kB)

More information

Published date: 1995


Local EPrints ID: 46431
PURE UUID: 8c1f7857-5288-44bf-bf7c-efa68d6ac0f5
ORCID for P. Temarel: ORCID iD
ORCID for D.A. Hudson: ORCID iD

Catalogue record

Date deposited: 28 Jun 2007
Last modified: 17 Jul 2017 15:07

Export record


Author: J.F. Wellicome
Author: P. Temarel ORCID iD
Author: A.F. Molland
Author: D.A. Hudson ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.