The influence of dihedral bulbous bows on the resistance of small fishing vessels: a numerical study
The influence of dihedral bulbous bows on the resistance of small fishing vessels: a numerical study
Environmental aspects in the shipping industry are nowadays taking more relevance. Independently of the type of fuel used, good drawing lines in ships might help with the emission mitigation and also with the ship efficiency. In the fishing industry, ships lines in non-developed countries and in small traditional ships are normally not optimized what leads to a no optimal use of the resources and operation. In this work this topic is treated. The lines of two fishing vessels are studied numerically and compared with towing tank experiments. Those lines from a displacement and a semi-displacement hull, are optimized by adding a new type of bow named as dihedral bulbous bow. This bow produces a reduction over 10% of the ship’s resistance. This work focuses on explaining numerically why that difference occurs. The bulbous bow reduces the pressure resistance by softening the flow that reaches the bow.
OpenFOAM, Small �shing vessels, computational uid dynamics, dihedral bow, ship energy efficiency, Ship energy efficiency, Dihedral bow, Computational fluid dynamics, Small fishing vessels
Diaz-Ojeda, Hector
6990e39d-cb55-4dbe-b943-2d728e74a0a7
Perez-Arribas, F
b3460c15-2c5f-49ee-8333-ae46e9175bd8
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
1 August 2023
Diaz-Ojeda, Hector
6990e39d-cb55-4dbe-b943-2d728e74a0a7
Perez-Arribas, F
b3460c15-2c5f-49ee-8333-ae46e9175bd8
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Diaz-Ojeda, Hector, Perez-Arribas, F and Turnock, Stephen
(2023)
The influence of dihedral bulbous bows on the resistance of small fishing vessels: a numerical study.
Ocean Engineering, 281, [114661].
(doi:10.1016/j.oceaneng.2023.114661).
Abstract
Environmental aspects in the shipping industry are nowadays taking more relevance. Independently of the type of fuel used, good drawing lines in ships might help with the emission mitigation and also with the ship efficiency. In the fishing industry, ships lines in non-developed countries and in small traditional ships are normally not optimized what leads to a no optimal use of the resources and operation. In this work this topic is treated. The lines of two fishing vessels are studied numerically and compared with towing tank experiments. Those lines from a displacement and a semi-displacement hull, are optimized by adding a new type of bow named as dihedral bulbous bow. This bow produces a reduction over 10% of the ship’s resistance. This work focuses on explaining numerically why that difference occurs. The bulbous bow reduces the pressure resistance by softening the flow that reaches the bow.
Text
H.R.Diaz-Ojeda
- Accepted Manuscript
Text
1-s2.0-S0029801823010454-main
- Version of Record
More information
Accepted/In Press date: 22 April 2023
e-pub ahead of print date: 10 May 2023
Published date: 1 August 2023
Additional Information:
Funding Information:
Juan Luis Chacón from ETSIN Model Basin, who was the key person in the experimental tests. Thanks to Adriana Oliva to Amadeo Morán who worked initially in the calculations. This work was initially supported by the Spanish Ministerio de Economía y Competitividad through research grant TRA2015-67788-P and partially supported by ACIISI-Gobierno de Canarias and European FEDER, Spain Funds Grant EIS 2021 04 .
Publisher Copyright:
© 2023 The Author(s)
Keywords:
OpenFOAM, Small �shing vessels, computational uid dynamics, dihedral bow, ship energy efficiency, Ship energy efficiency, Dihedral bow, Computational fluid dynamics, Small fishing vessels
Identifiers
Local EPrints ID: 477031
URI: http://eprints.soton.ac.uk/id/eprint/477031
ISSN: 0029-8018
PURE UUID: 947e7778-994a-4b08-b439-1fc94dfca247
Catalogue record
Date deposited: 23 May 2023 17:01
Last modified: 17 Mar 2024 02:35
Export record
Altmetrics
Contributors
Author:
Hector Diaz-Ojeda
Author:
F Perez-Arribas
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
