Influences of surface waves on the power generation performance of a ocean current energy turbine

Liwen Fang, Zhaoyong Mao, Baowei Song, Wenlong Tian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

It is known that wave has significant influence on ocean current turbines during the process of collecting energy. In order to study the influence of waves on the hydrodynamic performance of a near-surface vertical axis water turbine (VAWT), this paper carries out a series of two-dimensional transient computational fluid dynamics (CFD) simulation. First, a two-dimensional numerical wave basin based on CFD is built by defining inlet boundary. The accuracy of the numerical method is ensured through comparison between numerical wave shape and theoretical Stokes wave shape. The influences of waves are quantitatively analyzed by separately discussing hydrodynamics performances and flow structures of a VAWT under different wave heights and submerged depth. It is found that the average torque, the fluctuation amplitude of the torque and power coefficient increase with the increased wave height, and decrease with the increased submerged depth.

Original languageEnglish
Title of host publication2020 Global Oceans 2020
Subtitle of host publicationSingapore - U.S. Gulf Coast
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728154466
DOIs
StatePublished - 5 Oct 2020
Event2020 Global Oceans: Singapore - U.S. Gulf Coast, OCEANS 2020 - Biloxi, United States
Duration: 5 Oct 202030 Oct 2020

Publication series

Name2020 Global Oceans 2020: Singapore - U.S. Gulf Coast

Conference

Conference2020 Global Oceans: Singapore - U.S. Gulf Coast, OCEANS 2020
Country/TerritoryUnited States
CityBiloxi
Period5/10/2030/10/20

Keywords

  • Computational fluid dynamics (CFD)
  • Stokes wave
  • tidal turbine
  • vertical axis water turbine (VAWT)
  • Wave

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