Windt, Christian and Davidson, Josh and Schmitt, Pál and Ringwood, John (2017) Assessment of Numerical Wave Makers. Proceedings of the 12th European Wave and Tidal Energy Conference 27th Aug -1st Sept 2017 (107). pp. 1-10. ISSN 2309-1983

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Abstract

A numerical wave tank (NWT) based on Computational Fluid Dynamics (CFD) provides a useful tool for the analysis of offshore renewable energy (ORE) systems, such as wave energy converters (WECs). NWT experiments, of WEC operation, rely on accurate wave generation and absorption at the NWT boundaries. To tackle this problem, different methodologies, termed as numerical wave makers (NWMs), are available. The performance of these NWMs are often sensitive to properties of the experiment being performed, such as the frequency spectrum of the input sea state, the CFD solver used and/or the internal settings of the NWM. This paper discusses the desired NWM capabilities, for effective analysis of ocean wave energy systems, and then proposes a set of test cases to assess these capabilities for a given NWM. Results are presented for a sample NWM, the OpenFOAM toolbox OLAFOAM, and demonstrate the sensitivity of the NWM to the desired wave conditions and the global solver settings. The assessment methodologies introduced in this paper, and demonstrated for a single type of NWM, lay the groundwork for future evaluation and comparison of different NWM types, enabling appropriate NWM selection for NWT analysis of WECs.

Item Type:	Article
Keywords:	Numerical Wave Maker; Numerical Wave Tank; Wave Generation; Wave Absorption; OpenFOAM;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Centre for Ocean Energy Research
Item ID:	12462
Depositing User:	Professor John Ringwood
Date Deposited:	19 Feb 2020 15:18
Journal or Publication Title:	Proceedings of the 12th European Wave and Tidal Energy Conference 27th Aug -1st Sept 2017
Publisher:	European Wave and Tidal Energy Conference 2017
Refereed:	Yes
Funders:	Science Foundation Ireland (SFI)
URI:
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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