Influence of leeway on hull-propeller-rudder interaction using CFD methods
Influence of leeway on hull-propeller-rudder interaction using CFD methods
Due to the decarbonization challenges within the maritime sector, there is an increased focus on improving vessel propulsive energy efficiency. Wind-assisted propulsion is able to reduce emissions through retrofit systems that generate thrust from the wind. Wind-assisted vessels are subjected to increased aerodynamic forces and develop an inherent leeway and rudder angle to compensate for the lateral forces and yaw moments. Therefore, a good understanding of the impact of leeway on a ship’s propulsive efficiency is vital for the design and operation of wind assisted ships. This also contributes to a better insight into the physics of hydrodynamic interaction between the hull, propeller, and rudder while manoeuvring in seaways. In this paper, the KRISO Container Ship (KCS) model scale is chosen for numerical computations under three different leeway angles ( −10°, 0°, +10°) with a series of rudder angles. It is found that KCS’s drag and lateral forces increase with the increment of rudder angle in non-zero leeway conditions, and the rotating propeller intensifies this increasing trend. Rudder forces are mainly dependent on the upstream propeller performance and higher propeller loading tends to shift the rudder lift.
Wind assisted shipping, leeway angle, hull-propellerrudder interaction, Computational Fluid Dynamics (CFD)
599-606
Norwegian University of Science and Technology
Zhang, Yifu
f3bd0aa4-4ffb-43e5-b13d-699c0fbbee32
Hosseinzadeh, Saeed
47ee65b8-f6a8-4c4f-b99c-146eb389464b
Banks, Joseph
3e915107-6d17-4097-8e77-99c40c8c053d
Hudson, Dominic
3814e08b-1993-4e78-b5a4-2598c40af8e7
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
21 December 2023
Zhang, Yifu
f3bd0aa4-4ffb-43e5-b13d-699c0fbbee32
Hosseinzadeh, Saeed
47ee65b8-f6a8-4c4f-b99c-146eb389464b
Banks, Joseph
3e915107-6d17-4097-8e77-99c40c8c053d
Hudson, Dominic
3814e08b-1993-4e78-b5a4-2598c40af8e7
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Zhang, Yifu, Hosseinzadeh, Saeed and Banks, Joseph
,
et al.
(2023)
Influence of leeway on hull-propeller-rudder interaction using CFD methods.
In Proceedings of the Eighth International Symposium on Marine Propulsors - smp'24 17 - 20 March 2024, Berlin, Germany.
Norwegian University of Science and Technology.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Due to the decarbonization challenges within the maritime sector, there is an increased focus on improving vessel propulsive energy efficiency. Wind-assisted propulsion is able to reduce emissions through retrofit systems that generate thrust from the wind. Wind-assisted vessels are subjected to increased aerodynamic forces and develop an inherent leeway and rudder angle to compensate for the lateral forces and yaw moments. Therefore, a good understanding of the impact of leeway on a ship’s propulsive efficiency is vital for the design and operation of wind assisted ships. This also contributes to a better insight into the physics of hydrodynamic interaction between the hull, propeller, and rudder while manoeuvring in seaways. In this paper, the KRISO Container Ship (KCS) model scale is chosen for numerical computations under three different leeway angles ( −10°, 0°, +10°) with a series of rudder angles. It is found that KCS’s drag and lateral forces increase with the increment of rudder angle in non-zero leeway conditions, and the rotating propeller intensifies this increasing trend. Rudder forces are mainly dependent on the upstream propeller performance and higher propeller loading tends to shift the rudder lift.
Text
Zhang-InfluenceOfLeewayOnHullpropellerrudderInteractionUsingCfdMethods-1152-1-final
- Accepted Manuscript
More information
Published date: 21 December 2023
Venue - Dates:
Eighth International Symposium on Marine Propulsors smp’24, Berlin, Germany, March 2024, 2024-03-17 - 2024-03-20
Keywords:
Wind assisted shipping, leeway angle, hull-propellerrudder interaction, Computational Fluid Dynamics (CFD)
Identifiers
Local EPrints ID: 489512
URI: http://eprints.soton.ac.uk/id/eprint/489512
PURE UUID: baed601d-8801-4227-92fe-5dfc2ded4ad2
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Date deposited: 25 Apr 2024 16:39
Last modified: 27 Apr 2024 02:24
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Contributors
Author:
Yifu Zhang
Author:
Saeed Hosseinzadeh
Corporate Author: et al.
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