IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v17y2024i18p4760-d1483976.html

The Influence of Reduced Frequency on H-VAWT Aerodynamic Performance and Flow Field Near Blades

Author

Listed:
  • Nianxi Yue

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
    Gansu Provincial Technology Centre for Wind Turbines, Lanzhou 730050, China)

  • Congxin Yang

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
    Gansu Provincial Technology Centre for Wind Turbines, Lanzhou 730050, China)

  • Shoutu Li

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
    Gansu Provincial Technology Centre for Wind Turbines, Lanzhou 730050, China)

Abstract

Studies demonstrate that the reduced frequency k is influenced by the incoming wind speed U 0 and the rotor speed n . As a dimensionless parameter, k characterizes the stability of the flow field, which is a critical factor affecting the performance of vertical-axis wind turbines (VAWTs). This paper investigates the impact of k on the performance of straight-blade vertical-axis wind turbines (H-VAWT). The findings indicate that 0.05 is the critical value of k . The same k results in a similar flow field structure, yet the performance changes vary with different U 0 . A decrease in n or an increase in U 0 leads to an increase in the average value and fluctuation of k , which subsequently reduces the rotor rotation torque C m and decreases the maximum wind energy utilization rate Cp max . This reduction in Cp max weakens the stability of the flow field. Additionally, the high-speed area of the blade’s trailing edge velocity trajectory at θ = 0 ° , θ = 120 ° , and θ = 240 ° expands with increasing range. Velocity dissipation in the high-speed area of the trailing edge affects the stability of the flow field within the rotor.

Suggested Citation

  • Nianxi Yue & Congxin Yang & Shoutu Li, 2024. "The Influence of Reduced Frequency on H-VAWT Aerodynamic Performance and Flow Field Near Blades," Energies, MDPI, vol. 17(18), pages 1-20, September.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:18:p:4760-:d:1483976
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/17/18/4760/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/17/18/4760/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Morgan Rossander & Eduard Dyachuk & Senad Apelfröjd & Kristian Trolin & Anders Goude & Hans Bernhoff & Sandra Eriksson, 2015. "Evaluation of a Blade Force Measurement System for a Vertical Axis Wind Turbine Using Load Cells," Energies, MDPI, vol. 8(6), pages 1-24, June.
    2. Kjellin, J. & Bülow, F. & Eriksson, S. & Deglaire, P. & Leijon, M. & Bernhoff, H., 2011. "Power coefficient measurement on a 12 kW straight bladed vertical axis wind turbine," Renewable Energy, Elsevier, vol. 36(11), pages 3050-3053.
    3. Gharali, Kobra & Johnson, David A., 2012. "Numerical modeling of an S809 airfoil under dynamic stall, erosion and high reduced frequencies," Applied Energy, Elsevier, vol. 93(C), pages 45-52.
    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. Ziyun Wu & Xuetong Wang & Na Ren & Guangqi Li & Zhiyong Dai, 2025. "An Acceleration-Observer-Based Position and Load Torque Estimation Method for Wind Turbine with Sensor Faults," Energies, MDPI, vol. 18(11), pages 1-13, May.

    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. Anders Goude & Morgan Rossander, 2017. "Force Measurements on a VAWT Blade in Parked Conditions," Energies, MDPI, vol. 10(12), pages 1-15, November.
    2. Delafin, P.-L. & Nishino, T. & Kolios, A. & Wang, L., 2017. "Comparison of low-order aerodynamic models and RANS CFD for full scale 3D vertical axis wind turbines," Renewable Energy, Elsevier, vol. 109(C), pages 564-575.
    3. Eduard Dyachuk & Anders Goude, 2015. "Numerical Validation of a Vortex Model against ExperimentalData on a Straight-Bladed Vertical Axis Wind Turbine," Energies, MDPI, vol. 8(10), pages 1-21, October.
    4. Eduard Dyachuk & Morgan Rossander & Anders Goude & Hans Bernhoff, 2015. "Measurements of the Aerodynamic Normal Forces on a 12-kW Straight-Bladed Vertical Axis Wind Turbine," Energies, MDPI, vol. 8(8), pages 1-15, August.
    5. Morgan Rossander & Anders Goude & Sandra Eriksson, 2017. "Critical Speed Control for a Fixed Blade Variable Speed Wind Turbine," Energies, MDPI, vol. 10(11), pages 1-21, October.
    6. Victor Mendoza & Anders Goude, 2020. "Validation of Actuator Line and Vortex Models Using Normal Forces Measurements of a Straight-Bladed Vertical Axis Wind Turbine," Energies, MDPI, vol. 13(3), pages 1-16, January.
    7. Senad Apelfröjd & Sandra Eriksson & Hans Bernhoff, 2016. "A Review of Research on Large Scale Modern Vertical Axis Wind Turbines at Uppsala University," Energies, MDPI, vol. 9(7), pages 1-16, July.
    8. Bangga, Galih & Dessoky, Amgad & Wu, Zhenlong & Rogowski, Krzysztof & Hansen, Martin O.L., 2020. "Accuracy and consistency of CFD and engineering models for simulating vertical axis wind turbine loads," Energy, Elsevier, vol. 206(C).
    9. Zhu, Chengyong & Qiu, Yingning & Wang, Tongguang, 2021. "Dynamic stall of the wind turbine airfoil and blade undergoing pitch oscillations: A comparative study," Energy, Elsevier, vol. 222(C).
    10. Wekesa, David Wafula & Wang, Cong & Wei, Yingjie & Danao, Louis Angelo M., 2017. "Analytical and numerical investigation of unsteady wind for enhanced energy capture in a fluctuating free-stream," Energy, Elsevier, vol. 121(C), pages 854-864.
    11. Tariq Ullah & Krzysztof Sobczak & Grzegorz Liśkiewicz & Amjid Khan, 2022. "Two-Dimensional URANS Numerical Investigation of Critical Parameters on a Pitch Oscillating VAWT Airfoil under Dynamic Stall," Energies, MDPI, vol. 15(15), pages 1-19, August.
    12. Gong, Jianyu & Peng, Wenqiang & Zhao, Zhijie & Luo, Zhenbing & Wang, Hao, 2025. "Dynamic stall control scheme for wind turbines based on distributed dual synthetic jets," Energy, Elsevier, vol. 340(C).
    13. Deshun Li & Ting He & Qing Wang, 2023. "Experimental Research on the Effect of Particle Parameters on Dynamic Stall Characteristics of the Wind Turbine Airfoil," Energies, MDPI, vol. 16(4), pages 1-15, February.
    14. Meana-Fernández, Andrés & Solís-Gallego, Irene & Fernández Oro, Jesús Manuel & Argüelles Díaz, Katia María & Velarde-Suárez, Sandra, 2018. "Parametrical evaluation of the aerodynamic performance of vertical axis wind turbines for the proposal of optimized designs," Energy, Elsevier, vol. 147(C), pages 504-517.
    15. 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.
    16. Chen, J. & Yang, H.X. & Liu, C.P. & Lau, C.H. & Lo, M., 2013. "A novel vertical axis water turbine for power generation from water pipelines," Energy, Elsevier, vol. 54(C), pages 184-193.
    17. Erkan, Onur & Özkan, Musa & Karakoç, T. Hikmet & Garrett, Stephen J. & Thomas, Peter J., 2020. "Investigation of aerodynamic performance characteristics of a wind-turbine-blade profile using the finite-volume method," Renewable Energy, Elsevier, vol. 161(C), pages 1359-1367.
    18. Huang, Haoda & Liu, Qingsong & Yue, Minnan & Miao, Weipao & Wang, Peilin & Li, Chun, 2023. "Fully coupled aero-hydrodynamic analysis of a biomimetic fractal semi-submersible floating offshore wind turbine under wind-wave excitation conditions," Renewable Energy, Elsevier, vol. 203(C), pages 280-300.
    19. Cai, Chang & Yang, Yingjian & Jia, Yan & Wu, Guangxing & Zhang, Hairui & Yuan, Feiqi & Qian, Quan & Li, Qing'an, 2023. "Aerodynamic load evaluation of leading edge and trailing edge windward states of large-scale wind turbine blade under parked condition," Applied Energy, Elsevier, vol. 350(C).
    20. Liu, Jian & Zhu, Wenqing & Xiao, Zhixiang & Sun, Haisheng & Huang, Yong & Liu, Zhitao, 2018. "DDES with adaptive coefficient for stalled flows past a wind turbine airfoil," Energy, Elsevier, vol. 161(C), pages 846-858.

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:gam:jeners:v:17:y:2024:i:18:p:4760-:d:1483976. 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: MDPI Indexing Manager The email address of this maintainer does not seem to be valid anymore. Please ask MDPI Indexing Manager to update the entry or send us the correct address (email available below). General contact details of provider: https://www.mdpi.com .

    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.