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Added resistance and seakeeping performance of trimarans in oblique waves

Gong, J., Yan, S. ORCID: 0000-0001-8968-6616, Ma, Q. ORCID: 0000-0001-5579-6454 and Li, Y. (2020). Added resistance and seakeeping performance of trimarans in oblique waves. Ocean Engineering, 216, 107721.. doi: 10.1016/j.oceaneng.2020.107721

Abstract

Trimaran added resistance and seakeeping performance in oblique waves with strong nonlinearity are rarely investigated. This paper presents the numerical investigations on them by applying a hybrid method, called the QaleFOAM. This method can simulate a trimaran moving in a large wave field, considering viscous effects and dealing with violent wave-structure interaction (WSI). The numerical method is validated by experimental data for a trimaran moving in waves. Various cases are investigated with different wave steepness, different wavelengths, different forward speeds and different wave incident angles to study the properties and characteristics of the added resistance and seakeeping performance of a trimaran. The results demonstrate that the variational trend of the added resistance and motion amplitudes of the trimaran in waves is significantly affected by the wave steepness and wave incident angles and different from those of traditional mono-hull ships.

Publication Type: Article
Additional Information: © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Publisher Keywords: Trimaran, Added resistance, Seakeeping performance, Oblique waves, CFD, QALE-FEM, QaleFOAM, Breaking waves
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
V Naval Science
Departments: School of Mathematics, Computer Science & Engineering > Engineering > Civil Engineering
Date Deposited: 05 Oct 2020 11:58
URI: https://openaccess.city.ac.uk/id/eprint/25017
[img] Text - Accepted Version
This document is not freely accessible until 1 September 2021 due to copyright restrictions.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

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