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Numerical and experimental characterization of multi-stage Savonius rotors

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Listed:
  • Frikha, Sobhi
  • Driss, Zied
  • Ayadi, Emna
  • Masmoudi, Zied
  • Abid, Mohamed Salah

Abstract

In this paper, numerical simulation and experimental validation were performed to study the effect of multi-stage on the performance of a Savonius rotor. We tested five configurations with different stage number and we were particularly interested in visualizing the velocity field, the static pressure, the dynamic pressure, the vorticity, the turbulent kinetic energy, the turbulent dissipation rate and the turbulent viscosity. The software “SolidWorks Flow Simulation” has been used to present the local characteristics in different transverse and longitudinal planes. The considered numerical model is based on the resolution of the Navier-Stokes equations in conjunction with the standard k-ε turbulence model. These equations were solved by a finite volume discretization method. The wind tunnel experiment results were compared to the numerical results in terms of velocity profile, dynamic torque coefficient and power coefficient.

Suggested Citation

  • Frikha, Sobhi & Driss, Zied & Ayadi, Emna & Masmoudi, Zied & Abid, Mohamed Salah, 2016. "Numerical and experimental characterization of multi-stage Savonius rotors," Energy, Elsevier, vol. 114(C), pages 382-404.
    • Handle: RePEc:eee:energy:v:114:y:2016:i:c:p:382-404
    DOI: 10.1016/j.energy.2016.08.017
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    References listed on IDEAS

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    Cited by:

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    5. Khani, Mohammad Sadegh & Shahsavani, Younes & Mehraein, Mojtaba & Soleimani Rad, Mohammad Hossein & Nikbakhsh, Amir Abbas, 2024. "Evaluation of the performance of the Savonius hydrokinetic turbines in the straight and curved channels using advanced machine learning methods," Energy, Elsevier, vol. 290(C).
    6. Alom, Nur & Saha, Ujjwal K., 2018. "Performance evaluation of vent-augmented elliptical-bladed savonius rotors by numerical simulation and wind tunnel experiments," Energy, Elsevier, vol. 152(C), pages 277-290.
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    8. Piotr Doerffer & Krzysztof Doerffer & Tomasz Ochrymiuk & Janusz Telega, 2019. "Variable Size Twin-Rotor Wind Turbine," Energies, MDPI, vol. 12(13), pages 1-17, July.
    9. Bhagat, Ravindra & Kumar, Dinesh & Sarkar, Shibayan, 2023. "Design modification and performance prediction of ellipsoid cross-flow hydrokinetic turbine," Renewable Energy, Elsevier, vol. 219(P1).
    10. Arteaga-López, Ernesto & Ángeles-Camacho, Cesar & Bañuelos-Ruedas, Francisco, 2019. "Advanced methodology for feasibility studies on building-mounted wind turbines installation in urban environment: Applying CFD analysis," Energy, Elsevier, vol. 167(C), pages 181-188.
    11. Elbatran, A.H. & Ahmed, Yasser M. & Shehata, Ahmed S., 2017. "Performance study of ducted nozzle Savonius water turbine, comparison with conventional Savonius turbine," Energy, Elsevier, vol. 134(C), pages 566-584.
    12. Montelpare, Sergio & D'Alessandro, Valerio & Zoppi, Andrea & Ricci, Renato, 2018. "Experimental study on a modified Savonius wind rotor for street lighting systems. Analysis of external appendages and elements," Energy, Elsevier, vol. 144(C), pages 146-158.
    13. Cuevas-Carvajal, N. & Cortes-Ramirez, J.S. & Norato, Julian A. & Hernandez, C. & Montoya-Vallejo, M.F., 2022. "Effect of geometrical parameters on the performance of conventional Savonius VAWT: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).
    14. Khairil Anwar & Syukri Himran & Luther Sule & Nasruddin Azis, 2018. "Numerical Investigation Of Modified Savonius Wind Turbine with Various Straight Blade Angle," Journal of Mechanical Engineering Research & Developments (JMERD), Zibeline International Publishing, vol. 41(3), pages 38-42, September.

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