Simulating focused wave impacts on point absorber wave energy converters

Lin, Z., Chen, H. , Qian, L., Ma, Z., Causon, D. and Mingham, C. (2021) Simulating focused wave impacts on point absorber wave energy converters. Proceedings of the Institution of Civil Engineers: Engineering and Computational Mechanics, 174(1), pp. 19-31. (doi: 10.1680/jencm.19.00038)

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Abstract

This study contributes to the Collaborative Computational Project in Wave–Structure Interaction blind test series 2 by numerically investigating the dynamic response of two simplified point absorber wave energy converters (WECs – a hemispherical-bottom cylinder and a cylinder with moon-pool) under the action of focused waves of varying steepness. The open source toolbox OpenFOAM along with its new overset grid functionality is applied and evaluated for the complex flow problem involving both large free surface deformations and large-amplitude motions of floating objects. The quality of the numerically generated focused wave groups is first examined and validated against the experimental data. The effects of both wave steepness and the moon-pool on the dynamic responses and mooring loads of the simplified WECs are then analysed.

Item Type:Articles
Additional Information:This study was partially funded by the Engineering and Physical Sciences Research Council (EPSRC, UK) projects: A Zonal CFD Approach for Fully Nonlinear Simulations of Two Vessels in Launch and Recovery Operations (EP/N008839/1), Extreme Loading on FOWT under Complex Environmental Conditions (EP/T004150/1) and A CCP on Wave Structure Interaction: CCP-WSI (EP/M022382/1). The first author acknowledges the financial support from the Manchester Metropolitan University through sponsoring a research associate position.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Chen, Dr Hao
Authors: Lin, Z., Chen, H., Qian, L., Ma, Z., Causon, D., and Mingham, C.
College/School:College of Science and Engineering > School of Engineering
Journal Name:Proceedings of the Institution of Civil Engineers: Engineering and Computational Mechanics
Publisher:ICE Publishing
ISSN:1755-0777
ISSN (Online):1755-0785
Published Online:16 March 2021

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