IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v148y2020icp600-610.html
   My bibliography  Save this article

Mechanisms of power augmentation in two side-by-side vertical axis wind turbines

Author

Listed:
  • Alexander, Aaron S.
  • Santhanakrishnan, Arvind

Abstract

Using two-dimensional computational fluid dynamics (CFD) simulations, this study examines the physical mechanisms of performance improvement in a double rotor vertical axis wind turbine (VAWT) as compared to a single rotor VAWT. It was found that the primary mechanism for the approximately 10% improvement in power coefficient (CP) for the double rotor VAWT was a reduction in the bypass flow that passes around the outside of the single rotor VAWT. The single rotor VAWT is shown to cause greater than 54% of the incoming flow to bypass around the outside of the VAWT. By placing a second rotor in the system, the cross-stream flow that would normally exist to one side is suppressed due to the opposing cross-stream flow from the second rotor. The collision of cross-stream velocities results in a high pressure field upstream of the rotors. This high pressure field re-directs more flow through the rotors, reducing the total bypass down to below 51%. This reduction in total bypass is solely due to the reduction in bypass on the interior of the double rotor system as the exterior side actually experiences an increase in bypass of about 83%.

Suggested Citation

  • Alexander, Aaron S. & Santhanakrishnan, Arvind, 2020. "Mechanisms of power augmentation in two side-by-side vertical axis wind turbines," Renewable Energy, Elsevier, vol. 148(C), pages 600-610.
    • Handle: RePEc:eee:renene:v:148:y:2020:i:c:p:600-610
    DOI: 10.1016/j.renene.2019.10.149
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148119316465
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2019.10.149?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Zanforlin, Stefania & Nishino, Takafumi, 2016. "Fluid dynamic mechanisms of enhanced power generation by closely spaced vertical axis wind turbines," Renewable Energy, Elsevier, vol. 99(C), pages 1213-1226.
    2. Balduzzi, Francesco & Bianchini, Alessandro & Maleci, Riccardo & Ferrara, Giovanni & Ferrari, Lorenzo, 2016. "Critical issues in the CFD simulation of Darrieus wind turbines," Renewable Energy, Elsevier, vol. 85(C), pages 419-435.
    3. Daróczy, László & Janiga, Gábor & Petrasch, Klaus & Webner, Michael & Thévenin, Dominique, 2015. "Comparative analysis of turbulence models for the aerodynamic simulation of H-Darrieus rotors," Energy, Elsevier, vol. 90(P1), pages 680-690.
    4. Chen, Wei-Hsin & Chen, Ching-Ying & Huang, Chun-Yen & Hwang, Chii-Jong, 2017. "Power output analysis and optimization of two straight-bladed vertical-axis wind turbines," Applied Energy, Elsevier, vol. 185(P1), pages 223-232.
    5. Zhang, Baoshou & Song, Baowei & Mao, Zhaoyong & Tian, Wenlong, 2017. "A novel wake energy reuse method to optimize the layout for Savonius-type vertical axis wind turbines," Energy, Elsevier, vol. 121(C), pages 341-355.
    6. Lam, H.F. & Peng, H.Y., 2016. "Study of wake characteristics of a vertical axis wind turbine by two- and three-dimensional computational fluid dynamics simulations," Renewable Energy, Elsevier, vol. 90(C), pages 386-398.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Kuang, Limin & Katsuchi, Hiroshi & Zhou, Dai & Chen, Yaoran & Han, Zhaolong & Zhang, Kai & Wang, Jiaqi & Bao, Yan & Cao, Yong & Liu, Yijie, 2023. "Strategy for mitigating wake interference between offshore vertical-axis wind turbines: Evaluation of vertically staggered arrangement," Applied Energy, Elsevier, vol. 351(C).
    2. Barnes, Andrew & Marshall-Cross, Daniel & Hughes, Ben Richard, 2021. "Towards a standard approach for future Vertical Axis Wind Turbine aerodynamics research and development," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    3. Villeneuve, Thierry & Dumas, Guy, 2021. "Impact of some design considerations on the wake recovery of vertical-axis turbines," Renewable Energy, Elsevier, vol. 180(C), pages 1419-1438.
    4. Manuel Viqueira-Moreira & Esteban Ferrer, 2020. "Insights into the Aeroacoustic Noise Generation for Vertical Axis Turbines in Close Proximity," Energies, MDPI, vol. 13(16), pages 1-18, August.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Peng, H.Y. & Han, Z.D. & Liu, H.J. & Lin, K. & Lam, H.F., 2020. "Assessment and optimization of the power performance of twin vertical axis wind turbines via numerical simulations," Renewable Energy, Elsevier, vol. 147(P1), pages 43-54.
    2. Peng, H.Y. & Liu, M.N. & Liu, H.J. & Lin, K., 2022. "Optimization of twin vertical axis wind turbines through large eddy simulations and Taguchi method," Energy, Elsevier, vol. 240(C).
    3. Hand, Brian & Cashman, Andrew, 2018. "Aerodynamic modeling methods for a large-scale vertical axis wind turbine: A comparative study," Renewable Energy, Elsevier, vol. 129(PA), pages 12-31.
    4. Kuang, Limin & Katsuchi, Hiroshi & Zhou, Dai & Chen, Yaoran & Han, Zhaolong & Zhang, Kai & Wang, Jiaqi & Bao, Yan & Cao, Yong & Liu, Yijie, 2023. "Strategy for mitigating wake interference between offshore vertical-axis wind turbines: Evaluation of vertically staggered arrangement," Applied Energy, Elsevier, vol. 351(C).
    5. Liu, Qingsong & Miao, Weipao & Ye, Qi & Li, Chun, 2022. "Performance assessment of an innovative Gurney flap for straight-bladed vertical axis wind turbine," Renewable Energy, Elsevier, vol. 185(C), pages 1124-1138.
    6. Ma, Ning & Lei, Hang & Han, Zhaolong & Zhou, Dai & Bao, Yan & Zhang, Kai & Zhou, Lei & Chen, Caiyong, 2018. "Airfoil optimization to improve power performance of a high-solidity vertical axis wind turbine at a moderate tip speed ratio," Energy, Elsevier, vol. 150(C), pages 236-252.
    7. Zanforlin, Stefania & Deluca, Stefano, 2018. "Effects of the Reynolds number and the tip losses on the optimal aspect ratio of straight-bladed Vertical Axis Wind Turbines," Energy, Elsevier, vol. 148(C), pages 179-195.
    8. Lam, H.F. & Peng, H.Y., 2017. "Measurements of the wake characteristics of co- and counter-rotating twin H-rotor vertical axis wind turbines," Energy, Elsevier, vol. 131(C), pages 13-26.
    9. Thé, Jesse & Yu, Hesheng, 2017. "A critical review on the simulations of wind turbine aerodynamics focusing on hybrid RANS-LES methods," Energy, Elsevier, vol. 138(C), pages 257-289.
    10. Barnes, Andrew & Marshall-Cross, Daniel & Hughes, Ben Richard, 2021. "Towards a standard approach for future Vertical Axis Wind Turbine aerodynamics research and development," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    11. Balduzzi, Francesco & Drofelnik, Jernej & Bianchini, Alessandro & Ferrara, Giovanni & Ferrari, Lorenzo & Campobasso, Michele Sergio, 2017. "Darrieus wind turbine blade unsteady aerodynamics: a three-dimensional Navier-Stokes CFD assessment," Energy, Elsevier, vol. 128(C), pages 550-563.
    12. Li, Chao & Xiao, Yiqing & Xu, You-lin & Peng, Yi-xin & Hu, Gang & Zhu, Songye, 2018. "Optimization of blade pitch in H-rotor vertical axis wind turbines through computational fluid dynamics simulations," Applied Energy, Elsevier, vol. 212(C), pages 1107-1125.
    13. Kun Wang & Li Zou & Aimin Wang & Peidong Zhao & Yichen Jiang, 2020. "Wind Tunnel Study on Wake Instability of Twin H-Rotor Vertical-Axis Turbines," Energies, MDPI, vol. 13(17), pages 1-18, August.
    14. Hand, Brian & Kelly, Ger & Cashman, Andrew, 2021. "Aerodynamic design and performance parameters of a lift-type vertical axis wind turbine: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 139(C).
    15. Stefania Zanforlin & Fulvio Buzzi & Marika Francesconi, 2019. "Performance Analysis of Hydrofoil Shaped and Bi-Directional Diffusers for Cross Flow Tidal Turbines in Single and Double-Rotor Configurations," Energies, MDPI, vol. 12(2), pages 1-25, January.
    16. Wong, Kok Hoe & Chong, Wen Tong & Poh, Sin Chew & Shiah, Yui-Chuin & Sukiman, Nazatul Liana & Wang, Chin-Tsan, 2018. "3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine," Renewable Energy, Elsevier, vol. 129(PA), pages 32-55.
    17. Lidong Zhang & Kaiqi Zhu & Junwei Zhong & Ling Zhang & Tieliu Jiang & Shaohua Li & Zhongbin Zhang, 2018. "Numerical Investigations of the Effects of the Rotating Shaft and Optimization of Urban Vertical Axis Wind Turbines," Energies, MDPI, vol. 11(7), pages 1-25, July.
    18. Yoshifumi Jodai & Yutaka Hara, 2023. "Wind-Tunnel Experiments on the Interactions among a Pair/Trio of Closely Spaced Vertical-Axis Wind Turbines," Energies, MDPI, vol. 16(3), pages 1-27, January.
    19. Franchina, N. & Kouaissah, O. & Persico, G. & Savini, M., 2022. "Three-dimensional modeling and investigation of the flow around a troposkein vertical axis wind turbine at different operating conditions," Renewable Energy, Elsevier, vol. 199(C), pages 368-381.
    20. Dessoky, Amgad & Lutz, Thorsten & Bangga, Galih & Krämer, Ewald, 2019. "Computational studies on Darrieus VAWT noise mechanisms employing a high order DDES model," Renewable Energy, Elsevier, vol. 143(C), pages 404-425.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:148:y:2020:i:c:p:600-610. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.