405-25

Hydrodynamic Analysis of a Modelling Approach of Oscillating Water Columns Integrated in a Barge-based Floating Offshore Wind Turbine

F. Mzoughi(1,2), C. Crawford(1), A. J. Garrido(2), I. Garrido(2)

1. Sustainable Systems Design Lab–SSDL, Institute for Integrated Energy Systems–IESVic, Department of Mechanical Engineering, Faculty of Engineering and Computer Science, University of Victoria–UVic, 3800 Finnerty Road, V8P 5C2 Victoria BC, Canada

2. Automatic Control Group–ACG, Institute of Research and Development of Processes–IIDP, Department of Automatic Control and Systems Engineering, Faculty of Engineering of Bilbao–EIB/BIE, University of the Basque Country–UPV/EHU, Po Rafael Moreno no3, 48013 Bilbao, Spain

2025-07-25

The integration of Oscillating Water Columns(OWCs) into Floating Offshore Wind Turbines (FOWTs) offers a promising hybrid renewable energy solution. Accurately modeling the hydrodynamic response of these systems is essential for performance assessment and design optimization. This study compares two numerical models, i.e. standard ITI Energy barge and the same one with four integrated OWCs. Using WAMIT, the hydrodynamic analysis of both platforms was carried out including the added masses, damping coefficients, and Response Amplitude Operators (RAOs). The results highlight the advantages and limitations of both platforms, providing insights into their suitability.

Key words: Floating Offshore Wind Turbine, Hydrodynamic Modelling, ITI Energy Barge, MultiSurf Oscillating Water Columns, WAMIT

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