Coupling between ship motion and sloshing using potential flow
analysis
Coupling between ship motion and sloshing using potential flow
analysis
In this paper, investigation of the coupled motions of a rigid ship with a partially filled tank is carried out, using potential flow analysis. The aim at this stage is to examine the appropriateness and short comings of two methods, namely a simple Green’s function using Rankine formulation, including the de-singularised approach, and the pulsating source Green’s function, in simulating the fundamental physical aspects of liquid sloshing. The hydrodynamic forces and moments associated with the liquid sloshing are represented by relevant added mass coefficients. Subsequently, the coupled equations of motion of ship-partially filled tank in regular waves is generated and responses evaluated. The aforementioned methods were applied to a barge equipped with a partially-filled tank. There is good agreement between the responses obtained by all numerical methods used. Comparisons with available experimental roll RAOs indicate that all methods used capture well the physical aspects of the effects of sloshing liquid on ship motions.
573-581
Lee, Y.B.
c60944c3-df06-41a8-989e-69100ed49b4d
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
Temarel, P.
b641fc50-5c8e-4540-8820-ae6779b4b0cf
September 2008
Lee, Y.B.
c60944c3-df06-41a8-989e-69100ed49b4d
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
Temarel, P.
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Lee, Y.B., Tan, M. and Temarel, P.
(2008)
Coupling between ship motion and sloshing using potential flow
analysis.
8th International Conference on HydroDynamics (ICHD'08), Nantes, France.
29 Sep - 02 Oct 2008.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this paper, investigation of the coupled motions of a rigid ship with a partially filled tank is carried out, using potential flow analysis. The aim at this stage is to examine the appropriateness and short comings of two methods, namely a simple Green’s function using Rankine formulation, including the de-singularised approach, and the pulsating source Green’s function, in simulating the fundamental physical aspects of liquid sloshing. The hydrodynamic forces and moments associated with the liquid sloshing are represented by relevant added mass coefficients. Subsequently, the coupled equations of motion of ship-partially filled tank in regular waves is generated and responses evaluated. The aforementioned methods were applied to a barge equipped with a partially-filled tank. There is good agreement between the responses obtained by all numerical methods used. Comparisons with available experimental roll RAOs indicate that all methods used capture well the physical aspects of the effects of sloshing liquid on ship motions.
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Published date: September 2008
Venue - Dates:
8th International Conference on HydroDynamics (ICHD'08), Nantes, France, 2008-09-29 - 2008-10-02
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 63946
URI: http://eprints.soton.ac.uk/id/eprint/63946
PURE UUID: 11a00b4d-95b5-4f47-ac1b-ef3e63521aaf
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Date deposited: 20 Nov 2008
Last modified: 12 Dec 2021 02:48
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Contributors
Author:
Y.B. Lee
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