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A study on viscous roll damping of a box-shaped vessel in the frequency domain using the discrete vortex method

Lookup NU author(s): Mohammad Hajiarab, Professor Martin Downie

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Abstract

This paper presents a study on viscous roll damping of a floating box-shaped vessel in the frequency domain. The application of the discrete vortex method (DVM) for calculation of the viscous roll damping in regular seas has been validated by model tests. Equivalent roll RAOs associated with a range of regular wave amplitudes are calculated to assess behaviour of the viscous roll damping in relation to incident wave amplitude linearisation. A model test is conducted using the model test facilities of the Marine Hydrodynamics Laboratory at Newcastle University to validate the applicability of the DVM in calculating the roll RAO in regular waves and to study the application of this method to irregular waves. Results of these model tests are presented in this paper.

Publication metadata

Author(s): Hajiarab M, Downie M, Graham M

Publication type: Article

Publication status: Published

Journal: Transactions of the Royal Institution of Naval Architects. Part A: International Journal of Maritime Engineering

Year: 2011

Volume: 153

Pages: A149-A152

Print publication date: 01/04/2011

ISSN (print): 1479-8751

ISSN (electronic): 1740-0716

Publisher: Royal Institution of Naval Architects

URL: http://dx.doi.org/10.3940/rina.ijme.2011.a2.wf9tn

DOI: 10.3940/rina.ijme.2011.a2.wf9tn

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