Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 12, 2022 - November 13, 2022
Numerical investigation of the effect of winglets on NREL Phase VI wind turbine blade is performed. In this research, two different winglet configurations upstream winglet and downstream winglet are compared to see which configuration has the benefit to improve the blade performance. The thickness of winglet tip with the blade shape varied from 100% to 85% and 70% of tip blade thickness to see the effect on blade performance. Moving reference frame method was chosen to perform the blade rotating motion. Computational results were compared with experimental data and it was found that upstream winglet able to increase torque production compared to normal blade up to 1.6%. While downstream winglet decreases. Reducing winglet thickness tends to increase the torque.
