A machine learning method for the evaluation of hydrodynamic performance of floating breakwaters in waves

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2022-07-03
Major/Subject
Mcode
Degree programme
Language
en
Pages
15
Series
Ships and Offshore Structures
Abstract
This paper presents a two-dimensional simulation model for the idealisation of moored rectangular and trapezoidal floating breakwaters (FB) motions in regular and irregular waves. Fast-Fictitious Domain and Volume of Fluid methods are coupled to track-free surface effects and predict FB motions. Hydrodynamic performance is assessed by a machine learning method based on Cuckoo Search–Least Square Support Vector Machine model (CS–LSSVM). Results confirm that a suitable combination of the aspect ratio of an FB and her sidewall mooring angle could help attenuate incoming waves to a minimum height. It is concluded that moored trapezoidal FBs are more efficient than traditional rectangular designs and subject to further validation CS–LSSVM can be useful in terms of optimising the values of predicted wave transmission coefficients.
Description
Publisher Copyright: © 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Keywords
Floating breakwaters (FBs), fluid–structure interactions (FSI), machine learning, cuckoo search algorithm, regular and irregular waves, hydrodynamic performance
Other note
Citation
Saghi , H , Hirdaris , S & Mikkola , T 2022 , ' A machine learning method for the evaluation of hydrodynamic performance of floating breakwaters in waves ' , Ships and Offshore Structures , vol. 17 , no. 7 , pp. 1447-1461 . https://doi.org/10.1080/17445302.2021.1927358