Numerical and experimental investigations on the hydrodynamic performance of a tidal current turbine

Xiaohui Su, Huiying Zhang, Guang Zhao, Yao Cao, Yong Zhao

Research output: Contribution to journalArticle

Abstract

In this paper, numerical and experimental investigations are presented on the hydrodynamic performance of a horizontal tidal current turbine (TCT) designed and made by our Dalian University of Technology (DUT) research group. Thus, it is given the acronym: DUTTCT. An open-source computational fluid dynamics (CFD) solver, called PIMPLEDYMFOAM, is employed to perform numerical simulations for design analysis, while experimental tests are conducted in a DUT towing tank. The important factors, including selfstarting velocity, tip speed ratio (TSR), and yaw angle, which play important roles in the turbine output power, are studied in the investigations. Results obtained show that the maximum power efficiency of the newly developed turbine (DUTTCT) could reach up to 47.6%, and all its power efficiency is over 40% in the TSR range from 3.5 to 6; the selfstarting velocity of DUTTCT is about 0.745 m/s; and the yaw angle has negligible influence on its efficiency as it is less than 10 deg.

Original languageEnglish
Article number021902
JournalJournal of Offshore Mechanics and Arctic Engineering
Volume140
Issue number2
DOIs
Publication statusPublished - Apr 1 2018

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Turbines
Hydrodynamics
Ship model tanks
Computational fluid dynamics
Computer simulation

ASJC Scopus subject areas

  • Ocean Engineering
  • Mechanical Engineering

Cite this

Numerical and experimental investigations on the hydrodynamic performance of a tidal current turbine. / Su, Xiaohui; Zhang, Huiying; Zhao, Guang; Cao, Yao; Zhao, Yong.

In: Journal of Offshore Mechanics and Arctic Engineering, Vol. 140, No. 2, 021902, 01.04.2018.

Research output: Contribution to journalArticle

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