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Vol.15, No.3, August 2026. ISSN: 2217-8309 eISSN: 2217-8333
TEM Journal
TECHNOLOGY, EDUCATION, MANAGEMENT, INFORMATICS Association for Information Communication Technology Education and Science |
Experimental Investigation of a Savonius Wind Turbine in a Wind Tunnel
Halima Hadžiahmetović, Mirela Alispahić, Rejhana Blažević, Amra Hasečić, Amir Balić, Kenan Fejzić
© 2026 Rejhana Blažević, published by UIKTEN. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. (CC BY-NC-ND 4.0)
Citation Information: TEM Journal. Volume 15, Issue 3, Pages 2087-2095, ISSN 2217-8309, DOI: 10.18421/TEM153-03, August 2026.
Received: 23 December 2025.
Abstract:
This study presents an experimental investigation of a Savonius wind turbine conducted under controlled wind tunnel conditions. Turbine performance was evaluated at inlet airflow velocities of 5, 7, and 9 m/s. Airflow velocities were measured upstream and downstream of the turbine to determine the effective rotor velocity, while rotational speed measurements enabled calculation of the tip-speed ratio (TSR). The airflow velocity distribution along the turbine height and width was analysed to examine air–blade interactions and identify regions influencing turbine performance. The results demonstrate a strong dependence of rotor behaviour on inlet airflow conditions, with improved performance observed at higher velocities. Smoke-based flow visualisation provided qualitative insight into airflow patterns and vortex formation around the blades, confirming the influence of flow guidance on turbine operation. These findings contribute to a better understanding of Savonius wind turbine aerodynamics and support further optimisation of turbine design and flow control strategies.
Keywords – Savonius wind turbine, wind tunnel, tip-speed ratio (TSR), turbine efficiency. |
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