A review of computational methods for studying oscillating water columns – the Navier-Stokes based equation approach

F. Opoku, M.N. Uddin and M. Atkinson

Renewable and Sustainable Energy Reviews, 2023, vol. 174, issue C

Abstract: This review evaluates the state-of-the-practice numerical tools used to predict the performance of Oscillating Water Column (OWC). The OWC is a widely studied Wave Energy Converter that provides a reliable form of renewable form of electricity that can potentially meet global energy needs. However, the fluid-flow phenomena affecting its hydrodynamic performance are not fully understood. While there has been the successful full-scale deployment of OWCs, various computational methods are being explored to optimize this technology. Potential flow theory is commonly used to evaluate the efficiency of OWCs; however, this assumption tends to over-predict the hydrodynamic performance. Recently, numerical studies using a diverse set of commercial, open-source, or in-house Computational Fluid Dynamics (CFD) using Reynolds Averaged Navier Stokes (RANS) and Large-Eddy Simulation codes show a better comparison to available experimental results but are computationally expensive. ANSYS Fluent was found to be the most widely used CFD code applied to the study of the OWCs, with a high degree of accuracy in terms of experimental validation of numerical results.

Keywords: Oscillating water column; Wave energy converter; Marine renewable energy; Computational fluid dynamics; Reynolds Averaged Navier Stokes; Large-Eddy simulation; ANSYS Fluent (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (4)

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DOI: 10.1016/j.rser.2022.113124

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