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Steady sailing performance of a hybrid-sail assisted bulk carrier

Steady sailing performance of a hybrid-sail assisted bulk carrier
Steady sailing performance of a hybrid-sail assisted bulk carrier
The steady sailing performance of a sail-assisted bulk carrier is investigated utilising towing-tank derived hydrodynamic derivatives and wind tunnel measured aerodynamic properties of the sails and the ship. The aerodynamic characteristics investigated include the ship hull at the fully-loaded draught, the sail–sail interaction effects for two sets of four identical hybrid-sails, and the sail–hull interaction effects for the same two sets of identical sails in the presence of the selected bulk carrier hull-form. This is in addition to lift–drag measurements of single isolated sails of each shape. The form of the two sets of soft sails was rectangular and triangular. This paper is concerned with assessing the benefits of a sail-assisted ship operation, and hence a steady-state rather than complete time-domain integrations of the governing equations are reported. The results of the completed analysis suggest that the benefits of the derived sail generated driving force are greater than the overhead of equipping the ship with a selected system of hybrid-sails. Sail-assisted ships could represent an important contribution to an improving global environment by reducing the demands for a driving force through the propeller.
0948-4280
131-146
Fujiwara, Toshifumi
6485dd91-ec2c-4e4a-9305-59405d5b7515
Hearn, Grant E.
c1b2912b-fe5c-432c-aaa4-39c5eff75178
Kitamura, Fumitoshi
b78909be-d9a6-4fa3-baed-0760f12275b3
Ueno, Michio
1c07b699-5ca9-4853-8ea7-daa583bf4ecc
Miniami, Yoshimasa
9472db95-1d19-4f69-8ff2-ca043d4a9e1f
Fujiwara, Toshifumi
6485dd91-ec2c-4e4a-9305-59405d5b7515
Hearn, Grant E.
c1b2912b-fe5c-432c-aaa4-39c5eff75178
Kitamura, Fumitoshi
b78909be-d9a6-4fa3-baed-0760f12275b3
Ueno, Michio
1c07b699-5ca9-4853-8ea7-daa583bf4ecc
Miniami, Yoshimasa
9472db95-1d19-4f69-8ff2-ca043d4a9e1f

Fujiwara, Toshifumi, Hearn, Grant E., Kitamura, Fumitoshi, Ueno, Michio and Miniami, Yoshimasa (2005) Steady sailing performance of a hybrid-sail assisted bulk carrier. Journal of Marine Science and Technology, 10 (3), 131-146. (doi:10.1007/s00773-004-0189-3).

Record type: Article

Abstract

The steady sailing performance of a sail-assisted bulk carrier is investigated utilising towing-tank derived hydrodynamic derivatives and wind tunnel measured aerodynamic properties of the sails and the ship. The aerodynamic characteristics investigated include the ship hull at the fully-loaded draught, the sail–sail interaction effects for two sets of four identical hybrid-sails, and the sail–hull interaction effects for the same two sets of identical sails in the presence of the selected bulk carrier hull-form. This is in addition to lift–drag measurements of single isolated sails of each shape. The form of the two sets of soft sails was rectangular and triangular. This paper is concerned with assessing the benefits of a sail-assisted ship operation, and hence a steady-state rather than complete time-domain integrations of the governing equations are reported. The results of the completed analysis suggest that the benefits of the derived sail generated driving force are greater than the overhead of equipping the ship with a selected system of hybrid-sails. Sail-assisted ships could represent an important contribution to an improving global environment by reducing the demands for a driving force through the propeller.

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More information

Published date: 1 September 2005
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 41072
URI: https://eprints.soton.ac.uk/id/eprint/41072
ISSN: 0948-4280
PURE UUID: b789f442-6f13-4a52-93bb-ad87f9c18610

Catalogue record

Date deposited: 14 Jul 2006
Last modified: 15 Jul 2019 18:58

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