TY - JOUR TI - Numerical and Experimental Investigations on the Hydrodynamic Performance of a Tidal Current Turbine AU - Su, X AU - Zhang, H AU - Zhao, G AU - Cao, Y AU - Zhao, Y T2 - Journal of Offshore Mechanics and Arctic Engineering AB - 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 degrees. DA - 2018/04// PY - 2018 VL - 140 IS - 2 SP - 021902 UR - https://asmedigitalcollection.asme.org/offshoremechanics/article/140/2/021902/395294 DO - 10.1115/1.4038249 LA - English KY - Current KY - Axial Flow Turbine KY - Tidal KY - Lab Data KY - Modeling KY - Hydrodynamics KY - Performance ER -