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Development and optimization of mathematical model of high speed planing dynamics

Development and optimization of mathematical model of high speed planing dynamics
Development and optimization of mathematical model of high speed planing dynamics
A nonlinear mathematical model capable of prediction load and motions of high speed planing craft in the
longitudinal plane has been developed. The development of the model is based on the mathematical model
presented by Zarnick (1978). Following the principle of 2D strip theory and wedge water entry problem, a high
speed planing hull is divided into a number of transverse sections. Sectional forces are evaluated, and then,
integrating along the ship length, total force and moment are obtained which leads to corresponding
instantaneous acceleration. By integration using a time marching scheme, velocity and displacement are
obtained. Solution of the motions of a planing craft based upon strip theory and wedge water impact is well
known and offers fast computational times useful for simulation and design. However it is necessary to
understand the balance between rapid computation and accuracy of this approach. Thus, The influence of the
controlling parameters, such as number of sections and time step, in the accuracy, stability and computational
times of the simulation in calm water and regular waves is investigated. The optimum model is finally validated
against the original model of Zarnick (1978) and the experiments of Fridsma (1969)
Kanyoo, Prin
31a976ce-67d5-4383-adfc-4159b716a925
Taunton, Dominic
10bfbe83-c4c2-49c6-94c0-2de8098c648c
Blake, James I R
83171cbe-0dd1-4832-9e4b-9df55cfa0a0d
Kanyoo, Prin
31a976ce-67d5-4383-adfc-4159b716a925
Taunton, Dominic
10bfbe83-c4c2-49c6-94c0-2de8098c648c
Blake, James I R
83171cbe-0dd1-4832-9e4b-9df55cfa0a0d

Kanyoo, Prin, Taunton, Dominic and Blake, James I R (2015) Development and optimization of mathematical model of high speed planing dynamics. FAST2015, United States, United States. 31 Aug - 03 Sep 2015.

Record type: Conference or Workshop Item (Paper)

Abstract

A nonlinear mathematical model capable of prediction load and motions of high speed planing craft in the
longitudinal plane has been developed. The development of the model is based on the mathematical model
presented by Zarnick (1978). Following the principle of 2D strip theory and wedge water entry problem, a high
speed planing hull is divided into a number of transverse sections. Sectional forces are evaluated, and then,
integrating along the ship length, total force and moment are obtained which leads to corresponding
instantaneous acceleration. By integration using a time marching scheme, velocity and displacement are
obtained. Solution of the motions of a planing craft based upon strip theory and wedge water impact is well
known and offers fast computational times useful for simulation and design. However it is necessary to
understand the balance between rapid computation and accuracy of this approach. Thus, The influence of the
controlling parameters, such as number of sections and time step, in the accuracy, stability and computational
times of the simulation in calm water and regular waves is investigated. The optimum model is finally validated
against the original model of Zarnick (1978) and the experiments of Fridsma (1969)

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More information

e-pub ahead of print date: 1 September 2015
Venue - Dates: FAST2015, United States, United States, 2015-08-31 - 2015-09-03
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 393517
URI: http://eprints.soton.ac.uk/id/eprint/393517
PURE UUID: 767ddd89-4195-44a7-9fc3-0b935e233893
ORCID for Dominic Taunton: ORCID iD orcid.org/0000-0002-6865-089X

Catalogue record

Date deposited: 27 Apr 2016 13:28
Last modified: 12 Dec 2021 03:04

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Contributors

Author: Prin Kanyoo
Author: Dominic Taunton ORCID iD
Author: James I R Blake

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