Numerical optimisation of a Ship Wind-Assisted Propulsion system using blowing and suction over a range of wind conditions

Cairns, J., Vezza, M. , Green, R. and MacVicar, D. (2021) Numerical optimisation of a Ship Wind-Assisted Propulsion system using blowing and suction over a range of wind conditions. Ocean Engineering, 240, 109903. (doi: 10.1016/j.oceaneng.2021.109903)

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Abstract

A Kriging surrogate model and a genetic algorithm are used to optimise the geometry of a ship wind assisted propulsion system (SWAP). The SWAP device is an actively controlled aerofoil mounted vertically on the deck of a ship in order to produce a forward propulsive force from the wind. The SWAP concept uses a circulation control system which employs both blowing from the leading edge and suction from the trailing edge. The aerodynamic parameters of the sail are found using a computational fluid dynamics (CFD) model validated against experimental data for a similar system, the coflow jet aerofoil. Further application of Kriging models is used to predict maximum lift coefficients for multiple freestream velocities, ensuring that the optimised device offers robust performance and low sensitivity to expected variations in wind speed. The maximum achievable lift coefficient was found to be 13.17% greater than for the baseline aerofoil over a range of wind speeds from 8–12 m/s.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Green, Dr Richard and Cairns, James and Vezza, Dr Marco
Creator Roles:
Cairns, J.Conceptualization, Methodology, Software, Validation, Formal analysis, Investigation, Writing – original draft, Writing – review and editing, Visualization
Vezza, M.Resources, Supervision, Project administration, Funding acquisition, Writing – review and editing
Green, R.Resources, Supervision, Writing – review and editing
Authors: Cairns, J., Vezza, M., Green, R., and MacVicar, D.
College/School:College of Science and Engineering
College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
Journal Name:Ocean Engineering
Publisher:Elsevier
ISSN:0029-8018
ISSN (Online):1873-5258
Published Online:11 October 2021
Copyright Holders:Copyright © 2021 Elsevier Ltd.
First Published:First published in Ocean Engineering 240:109903
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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