The University of Southampton
University of Southampton Institutional Repository

Lifting surface method for modelling ship rudders and propellers

Record type: Monograph (Project Report)

The theoretical basis for a lifting surface model using Morino's formulation is given in this report. The various choices made previously for modelling rudder and propeller interactions are described and the reasons for using, in this investigation, a lifting surface perturbation potential method. An explicit trailing edge pressure Kutta-Joukowsky condition is used to ensure that there is no pressure loading at the trailing edge. A frozen wake or an adaptive wake model can be chosen for both the rudder and propeller simulations.

A flexible scheme for geometry definition was developed to allow flow over a wide variety of geometries and multiple body lifting-surface problems. This surface definition scheme uses parametric cubic splines which require a minimal amount of data to accurately define quadrilateral panels on a three-dimensional surface.

The proposed Interaction Velocity Field method separately models the lifting surfaces. In this case, a rudder and propeller. The flow interaction between them is accounted for by modifying their respective inflow velocity fields. Expressions were derived to allow the velocity at any point within the flow domain to be calculated using the solution to the perturbation potential method. This process is used to generate the respective inflow velocity field. It can also be used to produce flow visualisation information important for design purposes.

Verification of the lifting-surface method was carried out to compare the results obtained with previously published numerical and experimental results.

PDF 050.pdf - Version of Record
Download (1MB)

Citation

Turnock, S.R. (1992) Lifting surface method for modelling ship rudders and propellers , Southampton, UK University of Southampton 93pp. (Ship Science Reports, 50).

More information

Published date: 1992
Additional Information: ISSN 0140-3818

Identifiers

Local EPrints ID: 44129
URI: http://eprints.soton.ac.uk/id/eprint/44129
PURE UUID: fb212852-8b45-4d20-abba-3140410ab3aa
ORCID for S.R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400

Catalogue record

Date deposited: 20 Feb 2007
Last modified: 17 Jul 2017 15:16

Export record


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.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

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.

×