Numerical simulation of steady and unsteady current velocity of a vertical axis marine turbine

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Motivated by the importance of investigating the hydrodynamic performance of Verti-cal Axis Marine Current Turbine (VAMCT) in field like to real marine environment, this work presents numerical simulation of VAMCT in both steady and unsteady current velocity. Three bladed turbine is examined in order to evaluate the performance of VAMCT in fluctuating current velocity. Turbine model is studied using a time-accurate Reynolds-Averaged Navier-Stokes (RANS). Transient rotor-stator model with sliding mesh technique was used. User-Definition Function (UDF) is created to simulate random fluctuated current velocity. The results show that, there are significant decrease in power efficiency in unsteady current compared with steady case.
Original languageEnglish
Title of host publication15th International Congress of the International Maritime Association of the Mediterranean: IMAM 2013
EditorsCarlos Guedes Soares, Fernando López Peña
Place of PublicationLondon
Pages871-877
Number of pages7
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

  • vertical axis marine turbine
  • marine turbine
  • numerical simulation
  • reynolds-averaged Navier-Stokes (RANS)
  • hydrodynamic performance
  • three bladed turbine

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    Amin, I., & Xiao, Q. (2013). Numerical simulation of steady and unsteady current velocity of a vertical axis marine turbine. In C. G. Soares, & F. L. Peña (Eds.), 15th International Congress of the International Maritime Association of the Mediterranean: IMAM 2013 (pp. 871-877). London.