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Modelling of a Damped Generic Submerged Spherical Wave Energy Converter in Resonance
conference contribution
posted on 2023-05-23, 12:48 authored by Bharath, AB, Jean-Roch NaderJean-Roch Nader, Irene PenesisIrene Penesis, Gregor MacFarlaneGregor MacFarlaneUnderstanding the importance of nonlinear effects on wave energy converters (WECs) is key to an accurate prediction of the power take-off (PTO) and design parameters during the development stage. The current study applies a fully nonlinear CFD model to analyse the performance of a fully submerged spherical WEC operating in heave. Three optimal restoring force coefficient values are used based on the incident wave frequencies along with the coinciding optimum radiation damping coefficient derived from previous linear models. CFD PTO results from the WEC cases are shown, quantifying the impact of nonlinear effects. Results show distinct variations between the linear and CFD approaches to modelling a WEC due mainly in part to interactions between the free surface and the WEC.
History
Publication title
Proceedings of the 12th European Wave and Tidal Energy Conference (EWTEC 2017)Volume
2017Pagination
1-7ISSN
2309-1983Department/School
Australian Maritime CollegePublisher
University of SouthamptonPlace of publication
United KingdomEvent title
12th European Wave and Tidal Energy Conference (EWTEC 2017)Event Venue
Cork, IrelandDate of Event (Start Date)
2017-08-27Date of Event (End Date)
2017-09-01Rights statement
Copyright 2017 European Wave and Tidal Energy ConferenceRepository Status
- Restricted