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Effect of a straight coast on the hydrodynamics and performance of the Oscillating Wave Surge Converter

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journal contribution
posted on 22.02.2016, 11:22 by Dripta Sarkar, Emiliano Renzi, F. Dias
This paper describes the behaviour of a flap-type oscillating wave energy converter near a straight coast. The mathematical formulation is based on a linear potential flow model. Application of Green’s theorem to a semi-infinite fluid domain yields a hypersingular integral equation for the velocity potential which is solved using a series expansion of Chebyshev polynomials. Extremes in the hydrodynamic characteristics of the system are shown to occur at certain wave periods when the device is located at specific distances from the coast. This dynamics can have either detrimental or favourable effects on the performance of the converter, depending on the system parameters. Surprisingly, when the device is located very close to the coast, the qualitative behaviour of the system resembles that of a single device in the open ocean. In addition, the analysis shows that under such circumstances, the device consistently achieves much higher levels of efficiency than it would achieve in an open ocean.

History

School

  • Science

Department

  • Mathematical Sciences

Published in

OCEAN ENGINEERING

Volume

105

Pages

25 - 32 (8)

Citation

SARKAR, D., RENZI, E. and DIAS, F., 2015. Effect of a straight coast on the hydrodynamics and performance of the Oscillating Wave Surge Converter. Ocean Engineering, 105, pp. 25-32.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This paper was accepted for publication in the journal Ocean Engineering and the definitive published version is available at http://dx.doi.org/10.1016/j.oceaneng.2015.05.025

ISSN

0029-8018

Language

en

Exports