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A desingularized Rankine source method for nonlinear wave-body interaction problems

A desingularized Rankine source method for nonlinear wave-body interaction problems
A desingularized Rankine source method for nonlinear wave-body interaction problems
A two-dimensional nonlinear wave–body interaction problem is solved by a desingularized integral method in combination with a mixed Euler–Lagrange method. A special treatment of the intersection point singularity is introduced by employing an optimal technique to smooth the wave elevation around the intersection point and the utilization of a free surface control point distribution. By this means the nonlinear boundary effects arising from body surface and free surface are taken into consideration in addition to the development of a free surface Rankine source distribution method. A Lagrangian formulation is applied to capture the time-dependent motion of the control points and source points to describe the body and free surface nonlinear boundary conditions. The validation of the proposed method is demonstrated by comparing findings with a selection of existing numerical and experimental data.
0029-8018
131-141
Feng, Aichun
fc38c627-950a-4359-955b-1cc91bea7ade
Chen, Zhi-Min
e4f81e6e-5304-4fd6-afb2-350ec8d1e90f
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Feng, Aichun
fc38c627-950a-4359-955b-1cc91bea7ade
Chen, Zhi-Min
e4f81e6e-5304-4fd6-afb2-350ec8d1e90f
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c

Feng, Aichun, Chen, Zhi-Min and Price, W.G. (2015) A desingularized Rankine source method for nonlinear wave-body interaction problems. Ocean Engineering, 101, 131-141. (doi:10.1016/j.oceaneng.2015.04.002).

Record type: Article

Abstract

A two-dimensional nonlinear wave–body interaction problem is solved by a desingularized integral method in combination with a mixed Euler–Lagrange method. A special treatment of the intersection point singularity is introduced by employing an optimal technique to smooth the wave elevation around the intersection point and the utilization of a free surface control point distribution. By this means the nonlinear boundary effects arising from body surface and free surface are taken into consideration in addition to the development of a free surface Rankine source distribution method. A Lagrangian formulation is applied to capture the time-dependent motion of the control points and source points to describe the body and free surface nonlinear boundary conditions. The validation of the proposed method is demonstrated by comparing findings with a selection of existing numerical and experimental data.

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More information

Accepted/In Press date: 6 April 2015
e-pub ahead of print date: 28 April 2015
Published date: June 2015
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 393977
URI: http://eprints.soton.ac.uk/id/eprint/393977
ISSN: 0029-8018
PURE UUID: 89826551-8fac-4d12-8cc7-f7f79ceb44df

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Date deposited: 09 May 2016 13:30
Last modified: 26 Apr 2022 17:25

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Contributors

Author: Aichun Feng
Author: Zhi-Min Chen
Author: W.G. Price

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