Numerical Investigation on the Performance of 1-MW Class Tidal Current Horizontal Axis Turbines

摘要

1-MW class tidal stream turbine is proposed and the performance is studied numerically by the both of blade element theory (BEMT) andcomputational fluid dynamics (CFD). The power coefficient according to the TSR(Tip Speed Ratio) is mainly focused for the evaluation ofthe performance of turbine. The computed results of the both methods are compared and analyzed in the present study. Additionally thecavitation inception is also treated and quantified by the minimum allowable immersion depth for cavitation free according to the variationof TSR. The comparison with experimental data is expected to be carried out in near future.