Wells turbine for wave energy conversion: a review

Ahmed Shehata, Qing Xiao, Khalid M. Saqr, Alexander Day

Research output: Contribution to journalArticlepeer-review

88 Citations (Scopus)
691 Downloads (Pure)


In the past twenty years, the use of wave energy systems has significantly increased, generally depending on the oscillating water column (OWC) concept. Wells turbine is one of the most efficient OWC technologies. This article provides an updated and a comprehensive account of the state of the art research on Wells turbine. Hence, it draws a roadmap for the contemporary challenges which may hinder future reliance on such systems in the renewable energy sector. In particular, the article is concerned with the research directions and methodologies which aim at enhancing the performance and efficiency of Wells turbine. The article also provides a thorough discussion of the use of computational fluid dynamics (CFD) for performance modeling and design optimization of Wells turbine. It is found that a numerical model using the CFD code can be employed successfully to calculate the performance characteristics of W-T as well as other experimental and analytical methods. The increase of research papers about CFD, especially in the last five years, indicates that there is a trend that considerably depends on the CFD method.
Original languageEnglish
Pages (from-to)1-33
Number of pages33
JournalInternational Journal of Energy Research
Publication statusPublished - 11 Jul 2016


  • wells turbine
  • computational fluid dynamics
  • wave energy
  • oscillating water column


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