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Predicting motions of high-speed rigid inflatable boats: improved wedge impact prediction

Hudson, D.A., Turnock, S.R. and Lewis, S.G. (2007) Predicting motions of high-speed rigid inflatable boats: improved wedge impact prediction At The Ninth International Conference on Fast Sea Transportation (FAST2007). 23 - 27 Sep 2007. , pp. 377-383.

Record type: Conference or Workshop Item (Paper)

Abstract

Modelling the performance of high speed planing craft is challenging. The inherent unsteady free surface flows are complex to model numerically, resulting in computationally expensive predictions. Non-linear equations of motion are required to predict the movement of the vessel. Previous work used a strip theory that predicts the forces of wedge impact using a potential flow method. This work aims to improve this numerical model by increasing the accuracy of predicting the forces acting on a wedge during impact. A viscous two dimensional computational fluid dynamic analysis is used to compute the wedge impacts, and the results are compared with the potential flow method used in the original motions prediction solver. Results of the computational fluid dynamics predictions are also compared with experimental data. Overall, good agreement is found with the experimental results and the computed wedge impact prediction improves upon the 2D potential theory results.

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More information

Published date: September 2007
Venue - Dates: The Ninth International Conference on Fast Sea Transportation (FAST2007), 2007-09-23 - 2007-09-27
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 48849
URI: http://eprints.soton.ac.uk/id/eprint/48849
PURE UUID: 24784e48-ef95-418e-a19e-9025bc37eb15
ORCID for D.A. Hudson: ORCID iD orcid.org/0000-0002-2012-6255
ORCID for S.R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400

Catalogue record

Date deposited: 16 Oct 2007
Last modified: 17 Jul 2017 14:58

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Contributors

Author: D.A. Hudson ORCID iD
Author: S.R. Turnock ORCID iD
Author: S.G. Lewis

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