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 self-starting 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 self-starting 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.
Numerical and Experimental Investigations on the Hydrodynamic Performance of a Tidal Current Turbine
Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received March 6, 2016; final manuscript received October 13, 2017; published online November 16, 2017. Assoc. Editor: Yin Lu Young.
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Su, X., Zhang, H., Zhao, G., Cao, Y., and Zhao, Y. (November 16, 2017). "Numerical and Experimental Investigations on the Hydrodynamic Performance of a Tidal Current Turbine." ASME. J. Offshore Mech. Arct. Eng. April 2018; 140(2): 021902. https://doi.org/10.1115/1.4038249
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