Evaluation of bow foils on ship delivered power in waves using model tests
Evaluation of bow foils on ship delivered power in waves using model tests
Bow foils have the potential to significantly reduce engine load and CO2 emissions of ships operating in waves. This paper presents the methodology and results of an improved free running experiment for the evaluation of bow foils. The model tests directly measured the change in ship delivered power in waves with and without a bow foil. The results show that the bow foil reduces the delivered power in regular head waves by up to 50% and 12% in irregular waves. In addition to quantifying the comparative contribution due to foil thrust and reduced ship motions in waves, the experiment measured the wave phasing and feathering parameters. The presented dataset, analysis and experimental procedures, which can be used for numerical validation and performance predictions in a range of conditions, demonstrates the potential of energy saving bow foils to reduce engine load and ship emissions.
Bow foil, Experiment, Free running, Model tests, Ship propulsion, Waves
Bowker, James Andrew
7e0d368b-4c3b-4daf-a831-57158eacd738
Townsend, Nicholas
3a4b47c5-0e76-4ae0-a086-cf841d610ef0
1 June 2022
Bowker, James Andrew
7e0d368b-4c3b-4daf-a831-57158eacd738
Townsend, Nicholas
3a4b47c5-0e76-4ae0-a086-cf841d610ef0
Bowker, James Andrew and Townsend, Nicholas
(2022)
Evaluation of bow foils on ship delivered power in waves using model tests.
Applied Ocean Research, 123, [103148].
(doi:10.1016/j.apor.2022.103148).
Abstract
Bow foils have the potential to significantly reduce engine load and CO2 emissions of ships operating in waves. This paper presents the methodology and results of an improved free running experiment for the evaluation of bow foils. The model tests directly measured the change in ship delivered power in waves with and without a bow foil. The results show that the bow foil reduces the delivered power in regular head waves by up to 50% and 12% in irregular waves. In addition to quantifying the comparative contribution due to foil thrust and reduced ship motions in waves, the experiment measured the wave phasing and feathering parameters. The presented dataset, analysis and experimental procedures, which can be used for numerical validation and performance predictions in a range of conditions, demonstrates the potential of energy saving bow foils to reduce engine load and ship emissions.
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Accepted/In Press date: 16 March 2022
e-pub ahead of print date: 8 April 2022
Published date: 1 June 2022
Additional Information:
Funding Information:
The authors would like to thank Mathew Lamont for the development of the ship database and initial hullform design during his summer internship. This research was supported by the EU as part of the SeaTech project (https://seatech2020.eu/). All authors approved the final version of the manuscript. [Formula presented], The opinions expressed in this document reflect only the author's view and in no way reflect the European Commission's opinions. The European Commission is not responsible for any use that may be made of the information it contains.
Publisher Copyright:
© 2022, The Authors
Keywords:
Bow foil, Experiment, Free running, Model tests, Ship propulsion, Waves
Identifiers
Local EPrints ID: 456692
URI: http://eprints.soton.ac.uk/id/eprint/456692
ISSN: 0141-1187
PURE UUID: 21b0f3a9-1d73-413b-b65a-50738d426383
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Date deposited: 09 May 2022 16:47
Last modified: 17 Mar 2024 03:05
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Author:
James Andrew Bowker
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