Abstract—Rotating the cylinder increases velocity in the upper and lower sides, increasing velocity between the advancing and cylinder by rotating in the opposite direction. The increase of velocity in the attached flow will decrease the pressure. The total drag will increase, which can improve the performance of Savonius. The study will be done experimentally to obtain the effect of cylinder obstacles at the advancing area of the Savonius wind turbine. The experiment used conventional savonius without overlap ratio having a size of 0.4m in diameter and height. The cylinder diameter ratio used was ds/D of 0.1, 0.2, 0.3, and 0.4, with stationary and rotation of 25 rotations per minute. The experiment would calculate the tip speed ratio, torque coefficient, and power coefficient. The best result obtained is a cylinder with a 0.4 diameter ratio (ds/D), 25 rotations per minute, improving the coefficient of power of 66.193% compared with no cylinder.

Keywords—Savonius, cylinder, experiment, coefficient of torque, coefficient of power

Cite: Priyo A. Setiawan, Triyogi Yuwono, Projek P. S. Lukitadi, Emie Santoso, Nopem Ariwiyono, Muhammad Shah, Bambang Antoko, Budi Prasojo, Endang P. Purwanti, and Edy P. Hidayat, "Experimental Investigation of Cylinder Rotation Effect on the Advancing Side to Savonius Wind Turbine Performance," International Journal of Mechanical Engineering and Robotics Research, Vol. 12, No. 5, pp. 284-289, September 2023. 

Copyright © 2023 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.