Influence of drift angle on the propulsive efficiency of a fully appended container ship (KCS) using computational fluid dynamics
Influence of drift angle on the propulsive efficiency of a fully appended container ship (KCS) using computational fluid dynamics
To estimate the powering and manoeuvring performance of the ship in a real seaway, it is essential to accurately determine forces acting on the hull, propeller, rudder and their interaction effects when operating at an angle of drift. The rotating propeller alters the fluid flow around the upstream hull and the downstream rudder. Likewise, when a non-zero drift or rudder angle is applied, significant crossflow is generated across the propeller plane, changing the wakefield and the actual performance of the propeller. A study is conducted to analyse the hull–propeller–rudder interaction of the benchmark KRISO Container Ship (KCS) in calm water using Computational Fluid Dynamics (CFD). The KCS is studied at drift angles of −10°, 0°and ＋10°, combined with a series of rudder angles (−35°to ＋35°), which can represent quasi-static phases of an actual ship manoeuvre. The propeller is modelled using two body force models, Blade Element Momentum Theory and the Yamazaki model. Good agreement is found between experimental and numerical results when predicting hull forces and wave patterns at drift, providing a good reference for experimental measurement of the hull and its appendage forces at drift and future validation of actual dynamic manoeuvring simulations.
Blade Element Momentum Theory, Computational Fluid Dynamics (CFD), Drift angle and rudder angle, Hull-propeller-rudder interaction, Ship manoeuvring, Wake fraction and thrust deduction, Wind Assist, Yamazaki model, Hull–propeller–rudder interaction, Wind assist
Zhang, Yifu
f3bd0aa4-4ffb-43e5-b13d-699c0fbbee32
Winden, Bjorn
b1093655-db40-4f63-b92f-aa70ed3a70a5
Diaz-Ojeda, Héctor Rubén
6990e39d-cb55-4dbe-b943-2d728e74a0a7
Hudson, Dominic
3814e08b-1993-4e78-b5a4-2598c40af8e7
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
15 January 2024
Zhang, Yifu
f3bd0aa4-4ffb-43e5-b13d-699c0fbbee32
Winden, Bjorn
b1093655-db40-4f63-b92f-aa70ed3a70a5
Diaz-Ojeda, Héctor Rubén
6990e39d-cb55-4dbe-b943-2d728e74a0a7
Hudson, Dominic
3814e08b-1993-4e78-b5a4-2598c40af8e7
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Zhang, Yifu, Winden, Bjorn, Diaz-Ojeda, Héctor Rubén, Hudson, Dominic and Turnock, Stephen
(2024)
Influence of drift angle on the propulsive efficiency of a fully appended container ship (KCS) using computational fluid dynamics.
Ocean Engineering, 292, [116537].
(doi:10.1016/j.oceaneng.2023.116537).
Abstract
To estimate the powering and manoeuvring performance of the ship in a real seaway, it is essential to accurately determine forces acting on the hull, propeller, rudder and their interaction effects when operating at an angle of drift. The rotating propeller alters the fluid flow around the upstream hull and the downstream rudder. Likewise, when a non-zero drift or rudder angle is applied, significant crossflow is generated across the propeller plane, changing the wakefield and the actual performance of the propeller. A study is conducted to analyse the hull–propeller–rudder interaction of the benchmark KRISO Container Ship (KCS) in calm water using Computational Fluid Dynamics (CFD). The KCS is studied at drift angles of −10°, 0°and ＋10°, combined with a series of rudder angles (−35°to ＋35°), which can represent quasi-static phases of an actual ship manoeuvre. The propeller is modelled using two body force models, Blade Element Momentum Theory and the Yamazaki model. Good agreement is found between experimental and numerical results when predicting hull forces and wave patterns at drift, providing a good reference for experimental measurement of the hull and its appendage forces at drift and future validation of actual dynamic manoeuvring simulations.
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OE_Final_Yifu_Zhang
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More information
Accepted/In Press date: 10 December 2023
e-pub ahead of print date: 14 December 2023
Published date: 15 January 2024
Additional Information:
Funding Information:
The authors acknowledge the use of the IRIDIS5 High Performance Computing Facility and Boldrewood Towing Tank Facility and associated support services provided by HPC team at the University of Southampton, in the completion of this work. H.R. Díaz-Ojeda acknowledges the funding provided by the Ministerio de Ciencia e Innovación through grant PID2022-140481OB-I00.
Funding Information:
The authors acknowledge the use of the IRIDIS5 High Performance Computing Facility and Boldrewood Towing Tank Facility and associated support services provided by HPC team at the University of Southampton , in the completion of this work. H.R. Díaz-Ojeda acknowledges the funding provided by the Ministerio de Ciencia e Innovación through grant PID2022-140481OB-I00 .
Publisher Copyright:
© 2023 The Authors
Keywords:
Blade Element Momentum Theory, Computational Fluid Dynamics (CFD), Drift angle and rudder angle, Hull-propeller-rudder interaction, Ship manoeuvring, Wake fraction and thrust deduction, Wind Assist, Yamazaki model, Hull–propeller–rudder interaction, Wind assist
Identifiers
Local EPrints ID: 485997
URI: http://eprints.soton.ac.uk/id/eprint/485997
ISSN: 0029-8018
PURE UUID: c51a1583-0ae3-47cd-abd0-e62b12d91755
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Date deposited: 05 Jan 2024 17:32
Last modified: 18 Mar 2024 03:50
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Contributors
Author:
Yifu Zhang
Author:
Bjorn Winden
Author:
Héctor Rubén Diaz-Ojeda
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