Numerical simulation of a floating body in multible degrees of freedom

J Westphalen, D M Greaves, A Hunt-Raby, Christopher J K Williams, P K Stansby, T Stallard

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Computational results for a floating body representing a single cylinder of the Manchester Bobber are compared with measured data from physical tank tests concerning the survivability of this wave energy converter in extreme waves. The float is connected to a counterweight via a pulley system, which is represented by additional forces and restricted degrees of motion in the computational approach. Two setups are discussed. In the first the float is restricted to move in vertical direction only. The second experiment also includes the horizontal displacement. The computations use a Navier-Stokes solver. The equations are discretised using a Finite Volume approach and solved for both water and air employing a Volume of Fluid method and a high resolution interface capturing scheme. For this challenging case, which also includes the inertia of the counterweight, rather than the motion of an independent floating body, the displacements of the float are presented and shown to be in reasonable agreement with the experiments.
Original languageEnglish
Title of host publicationRINA, Royal Institution of Naval Architects - Marine Renewable and Offshore Wind Energy - Papers
PublisherThe Royal Institution of Naval Architects
Pages81-88
Number of pages8
ISBN (Print)9781905040704
Publication statusPublished - Apr 2010
EventMarine Renewable and Offshore Wind Energy, April 21, 2010 - April 23, 2010 - London, UK United Kingdom
Duration: 1 Apr 2010 → …

Conference

ConferenceMarine Renewable and Offshore Wind Energy, April 21, 2010 - April 23, 2010
CountryUK United Kingdom
CityLondon
Period1/04/10 → …

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  • Cite this

    Westphalen, J., Greaves, D. M., Hunt-Raby, A., Williams, C. J. K., Stansby, P. K., & Stallard, T. (2010). Numerical simulation of a floating body in multible degrees of freedom. In RINA, Royal Institution of Naval Architects - Marine Renewable and Offshore Wind Energy - Papers (pp. 81-88). The Royal Institution of Naval Architects.