Numerical simulation of a horizontal axis tidal turbine with a pre-swirl stator

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Pre-swirl stator concept is proposed in this paper to improve the overall efficiency of Horizontal Axis Tidal Turbine (HATT). Numerical simulation of HATT with and without pre-swirl stator concept is conducted in different Tip Speed Ratio (TSR). A three bladed tidal turbine is numerically modelled and solved by a three-dimensional finite volume solver. Turbine model is studied using a timeaccurate Reynolds-Averaged Navier-Stokes (RANS). The transient rotor-stator model with sliding mesh technique is used. The power coefficients of a HATT without pre-swirl stator are predicted numerically and validated by existing experimental data. It has been found that the use of pre-swirl stator can improve the velocity field around the turbine leading to an increase of the overall turbine efficiency by about 13% in specific TSR.
Original languageEnglish
Title of host publication15th International Congress of the International Maritime Association of the Mediterranean: IMAM 2013
EditorsGuedes Soares, López Peña
Pages863-869
Number of pages6
Publication statusPublished - 14 Oct 2013
Event15th International Congress of the International Maritime Association of the Mediterranean, IMAM 2013 - A Coruna, Spain
Duration: 14 Oct 201317 Oct 2013

Conference

Conference15th International Congress of the International Maritime Association of the Mediterranean, IMAM 2013
CountrySpain
CityA Coruna
Period14/10/1317/10/13

Keywords

  • horizontal axis tidal turbine (HATT)
  • numerical simulation
  • reynolds-averaged Navier-Stokes (RANS)
  • three bladed tidal turbine
  • three-dimensional finite volume solver
  • tidal turbine

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  • Cite this

    Amin, I., & Xiao, Q. (2013). Numerical simulation of a horizontal axis tidal turbine with a pre-swirl stator. In G. Soares, & L. Peña (Eds.), 15th International Congress of the International Maritime Association of the Mediterranean: IMAM 2013 (pp. 863-869)