Analisis Pengaruh Variasi Sudut Kopling Terhadap Kinerja Turbin Angin Savonius Single Stage Menggunakan Metode CFD
DOI:
https://doi.org/10.55826/jtmit.v5i3.2044Keywords:
Turbin Savonius, Computational Fluid Dynamics, Sudut Kopling, Tip Speed RatioAbstract
Turbin angin Savonius merupakan salah satu turbin angin sumbu vertikal yang memiliki keunggulan dalam kemampuan beroperasi secara mandiri (self-starting) pada kondisi kecepatan angin rendah. Namun demikian, dibandingkan dengan beberapa tipe turbin angin lainnya, efisiensi aerodinamikanya masih relatif rendah sehingga diperlukan upaya untuk meningkatkan performanya. Penelitian ini bertujuan menganalisis pengaruh variasi sudut kopling terhadap karakteristik kinerja turbin angin Savonius single stage tipe S dengan memanfaatkan metode simulasi Computational Fluid Dynamics (CFD). Variasi sudut kopling yang ditinjau meliputi 0°, 30°, dan 60°, sedangkan kondisi operasi menggunakan kecepatan angin 2,5 m/s dan 3,5 m/s dengan variasi Tip Speed Ratio (TSR) sebesar 0,5 dan 0,81. Simulasi dilakukan menggunakan perangkat lunak ANSYS Fluent 2023 dengan menerapkan model turbulensi k-ω Shear Stress Transport (SST). Parameter performa yang dianalisis meliputi coefficient of power (Cp), coefficient of moment (Cm), serta efisiensi turbin. Hasil simulasi menunjukkan bahwa peningkatan nilai TSR dari 0,5 menjadi 0,81 mampu meningkatkan performa turbin pada seluruh variasi sudut kopling yang diuji. Pada kecepatan angin 2,5 m/s, konfigurasi sudut kopling 60° menghasilkan performa terbaik dengan nilai Cp sebesar 0,74 dan Cm sebesar 0,91. Sementara itu, pada kecepatan angin 3,5 m/s, kinerja optimum dicapai oleh konfigurasi sudut kopling 30° dengan nilai Cp sebesar 1,25, Cm sebesar 1,24, serta efisiensi sebesar 124,8%. Selain itu, analisis distribusi kontur kecepatan, tekanan, dan pola aliran menunjukkan bahwa konfigurasi sudut kopling 30° mampu menghasilkan karakteristik aerodinamika yang lebih baik sehingga proses konversi energi angin menjadi energi mekanik berlangsung lebih efektif dibandingkan konfigurasi lainnya.
References
[1] M. Bošnjakovi, “The Future of Vertical-Axis Wind Turbines : Opportunities , Challenges , and Sustainability Perspectives,” pp. 1–28, 2025.
[2] E. Chavero-navarrete, “A Systematic Review of Technological Strategies to Improve Self-Starting in H-Type Darrieus VAWT,” pp. 1–41, 2025.
[3] B. Salvador-gutierrez et al., “Vertical-Axis Wind Turbines in Emerging Energy Applications ( 1979 – 2025 ): Global Trends and Technological Gaps Revealed by a Bibliometric Analysis and Review,” pp. 1–31, 2025.
[4] A. Fazylova, K. Alipbayev, A. Aden, F. Oraz, T. Iliev, and I. Stoyanov, “A Comparative Review of Vertical Axis Wind Turbine Designs : Savonius Rotor vs . Darrieus Rotor,” pp. 1–29, 2025.
[5] R. D. James, “A Machine Learning Optimized Vertical-Axis Wind Turbine,” vol. 92, no. August, pp. 1–9, 2025, doi: 10.1115/1.4068443.
[6] L. Fouest and K. Mulleners, “The dynamic stall dilemma for vertical-axis wind turbines,” vol. 198, no. July, pp. 505–520, 2022, doi: 10.1016/j.renene.2022.07.071.
[7] V. W. Turbines, A. C. Review, D. H. Didane, M. R. Behery, and M. Al-ghriybah, “Recent Progress in Design and Performance Analysis of,” 2024.
[8] K. Lee, A. Cruden, J. Ng, and K. Wong, “Variable designs of vertical axis wind turbines — a review,” vol. 2024, no. August, pp. 1–27, 2024, doi: 10.3389/fenrg.2024.1437800.
[9] S. Stratila and D. Glasberg, “Performance Analysis of a New Vertical Axis Turbine Design for Household Usage,” vol. 14, no. 1, pp. 12536–12542, 2024.
[10] J. Cabrera-escobar et al., “CFD Simulation of a Vertical-Axis Savonius-Type Micro Wind Turbine Using Meteorological Data from an Educational Environment,” pp. 1–20, 2026.
[11] F. Ghafoorian, S. R. Mirmotahari, S. Farajyar, and M. Mehrpooya, “Performance Optimization of Savonius VAWTs Using Wind Accelerator and Guiding Rotor House for Enhanced Rooftop Urban Energy Harvesting,” pp. 1–29, 2025.
[12] S. Farajyar, F. Ghafoorian, M. Mehrpooya, and M. Asadbeigi, CFD Investigation and Optimization on the Aerodynamic Performance of a Savonius Vertical Axis Wind Turbine and Its Installation in a Hybrid Power Supply System : A Case Study in Iran. 2023.
[13] T. Method, T. Zhang, and S. Xu, “A Novel Wind Energy Gathering Structure for the Savonius Wind Turbine and Its Parameter Optimization Based on,” 2024.
[14] M. Mohammed, S. Sarip, and A. Aziz, “CFD-Based Performance Optimization of Overlap Ratio in Savonius Hydrokinetic Turbines for Riverine Energy Systems,” vol. 122, no. July, pp. 259–264, 2025, doi: 10.3303/CET25122044.
[15] L. Velásquez, J. Rengifo, A. Saldarriaga, and A. Rubio-clemente, “Geometric Optimization of Savonius Vertical-Axis Wind Turbines Using Full Factorial Design and Response Surface Methodology,” pp. 1–19, 2025.
[16] K. Mrigua, M. Zemamou, and M. Aggour, “Numerical Investigation of a New Modified Savonius Wind Turbines,” vol. 11, no. 4, pp. 1113–1123, 2022.
[17] N. Erizon et al., “Optimizing vertical-axis wind turbine designs : A comparative CFD analysis of savonius , darrieus , and savonius-darrieus configurations,” vol. 8, no. 2, pp. 211–222, 2025.
[18] D. Glasberg, “A Numerical Analysis on the Performance and Optimization of the Savonius Wind Turbine for Agricultural Use,” vol. 14, no. 1, pp. 12621–12627, 2024.
[19] A. Fazlizan, W. K. Muzammil, and N. A. Al-khawlani, “A Review of Computational Fluid Dynamics Techniques and Methodologies in Vertical Axis Wind Turbine Development,” 2025, doi: 10.32604/cmes.2025.067854.
[20] D. F. Fletcher, V. Chaugule, L. Gomes, P. M. Young, D. Traini, and J. Soria, “On the Use of Computational Fluid Dynamics ( CFD ) Modelling to Design Improved Dry Powder Inhalers Accepted : Pharmaceutical Research ( 2021 ) Accepted : Pharmaceutical Research ( 2021 ),” no. 2021, pp. 1–24.
[21] A. Khasani, “Modeling And Analysis Of The Savonius Type L Wind Turbine With Variations In Geometry And Number Of Blades On Airflow Using CFD ( Computational Fluid Dynamics ) Method,” vol. 3, no. 4, pp. 167–173, 2026.
[22] D. Devin, L. Halim, B. Made, and J. Chandra, “Journal of Mechatronics , Electrical Power , Design and CFD simulation of guide vane for multistage Savonius wind turbine,” vol. 14, no. 2, pp. 186–197, 2023.
[23] P. Das, “Enhanced Aerodynamic Performance of Savonius Wind Turbines Through Blade Design Modifications : A CFD Study,” pp. 1–13, 2025, doi: 10.1002/we.70042.
[24] M. Tata et al., “Aerodynamic Performance Investigations of Savonius Twin-rotor Wind Turbines,” vol. 17, no. 2, pp. 442–460, 2024.
[25] K. Nasr, “Heliyon Computational fluid dynamics investigations over conventional and modified Savonius wind turbines,” Heliyon, vol. 9, no. 6, p. e16876, 2023, doi: 10.1016/j.heliyon.2023.e16876.
Downloads
Published
Issue
Section
License
Copyright (c) 2026 habibi abyaz, Alviani Hesthi Permata Ningtyas
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
