TY - GEN
T1 - Numerical study of savonius wind turbines with standard and Bach-profile blade variations
AU - Djanali, Vivien Suphandani
AU - Fathurrahman, Zharfan
AU - Dwiyantoro, Bambang Arip
AU - Ikhwan, Nur
N1 - Publisher Copyright:
© 2019 Author(s).
PY - 2019/12/10
Y1 - 2019/12/10
N2 - Numerical analysis is performed on Savonius turbine rotor with the standard blades and Bach-profile blades. The standard configuration was taken as a half semi-circular cylinder with overlap. Savonius turbine with overlap blades is considered because it gives better performance compared to that without overlap. Meanwhile, the Bach-profile blades tested are varied with arc surface angles of 124° and 135°. The objective of the study is to compare the performance of the Savonius turbine with standard blades with overlap to that with Bach-profile blades, particularly at very low wind speed. Steady, two-dimensional numerical simulations were performed on Savonius rotor turbine. Reynolds-Averaged Navier Stokes solver was used to solve the computations, with the turbulence model of the transition k-kl-ω model. The simulations were run at constant freestream velocities of 4 m/s and 7 m/s, and at various rotor angle positions. Overall, the results show that the rotor with the Bach-profile blade with arc surface angle of 135° has the highest static torque coefficient compared to other profile blades, for both the velocities tested. The self-starting capabilities are approximately similar for all the blade type tested.
AB - Numerical analysis is performed on Savonius turbine rotor with the standard blades and Bach-profile blades. The standard configuration was taken as a half semi-circular cylinder with overlap. Savonius turbine with overlap blades is considered because it gives better performance compared to that without overlap. Meanwhile, the Bach-profile blades tested are varied with arc surface angles of 124° and 135°. The objective of the study is to compare the performance of the Savonius turbine with standard blades with overlap to that with Bach-profile blades, particularly at very low wind speed. Steady, two-dimensional numerical simulations were performed on Savonius rotor turbine. Reynolds-Averaged Navier Stokes solver was used to solve the computations, with the turbulence model of the transition k-kl-ω model. The simulations were run at constant freestream velocities of 4 m/s and 7 m/s, and at various rotor angle positions. Overall, the results show that the rotor with the Bach-profile blade with arc surface angle of 135° has the highest static torque coefficient compared to other profile blades, for both the velocities tested. The self-starting capabilities are approximately similar for all the blade type tested.
UR - https://www.scopus.com/pages/publications/85076771309
U2 - 10.1063/1.5138296
DO - 10.1063/1.5138296
M3 - Conference contribution
AN - SCOPUS:85076771309
T3 - AIP Conference Proceedings
BT - Innovative Science and Technology in Mechanical Engineering for Industry 4.0
A2 - Djanali, Vivien
A2 - Mubarok, Fahmi
A2 - Pramujati, Bambang
A2 - Suwarno, null
PB - American Institute of Physics Inc.
T2 - 4th International Conference on Mechanical Engineering: Innovative Science and Technology in Mechanical Engineering for Industry 4.0, ICOME 2019
Y2 - 28 August 2019 through 29 August 2019
ER -