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Investigation of the Optimal Omni-Direction-Guide-Vane Design for Vertical Axis Wind Turbines Based on Unsteady Flow CFD Simulation

Author

Listed:
  • Behzad Shahizare

    (Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia)

  • Nik Nazri Bin Nik Ghazali

    (Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia)

  • Wen Tong Chong

    (Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia)

  • Seyed Saeed Tabatabaeikia

    (Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia)

  • Nima Izadyar

    (Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia)

Abstract

With soaring energy demands, the desire to explore alternate and renewable energy resources has become the focal point of various active research fronts. Therefore, the scientific community is revisiting the notion to tap wind resources in more rigorous and novel ways. In this study, a two-dimensional computational investigation of the vertical axis wind turbine (VAWT) with omni-direction-guide-vane (ODGV) is proposed to determine the effects of this guide vane. In addition, the mesh and time step ( dt ) size dependency test, as well as the effect of the different turbulence models on results accuracy are investigated. Eight different shape ratios ( R ) of the omni-direction-guide-vane were also examined in this study. Further, the CFD model is validated by comparing the numerical results with the experimental data. Validation results show a good agreement in terms of shape and trend in CFD simulation. Based on these results, all the shape ratios, except two ratios including 0.3 and 0.4 at TSR of 1.3 to 3, have a positive effect on the power and torque coefficient improvement. Moreover, results show that the best case has a shape ratio of 0.55, which improves the power coefficient by 48% and the torque coefficient up to 58%.

Suggested Citation

  • Behzad Shahizare & Nik Nazri Bin Nik Ghazali & Wen Tong Chong & Seyed Saeed Tabatabaeikia & Nima Izadyar, 2016. "Investigation of the Optimal Omni-Direction-Guide-Vane Design for Vertical Axis Wind Turbines Based on Unsteady Flow CFD Simulation," Energies, MDPI, vol. 9(3), pages 1-25, March.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:3:p:146-:d:64883
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    References listed on IDEAS

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    1. 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.
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    Cited by:

    1. Rezaeiha, Abdolrahim & Kalkman, Ivo & Blocken, Bert, 2017. "CFD simulation of a vertical axis wind turbine operating at a moderate tip speed ratio: Guidelines for minimum domain size and azimuthal increment," Renewable Energy, Elsevier, vol. 107(C), pages 373-385.
    2. Seyedsaeed Tabatabaeikia & Nik Nazri Bin Nik-Ghazali & Wen Tong Chong & Behzad Shahizare & Ahmad Fazlizan & Alireza Esmaeilzadeh & Nima Izadyar, 2016. "A Comparative Computational Fluid Dynamics Study on an Innovative Exhaust Air Energy Recovery Wind Turbine Generator," Energies, MDPI, vol. 9(5), pages 1-19, May.
    3. Yong Ma & Aiming Zhang & Lele Yang & Chao Hu & Yue Bai, 2019. "Investigation on Optimization Design of Offshore Wind Turbine Blades based on Particle Swarm Optimization," Energies, MDPI, vol. 12(10), pages 1-18, May.
    4. Seungjin Lee & Saerom Kim & Jonghyun Chae & Joong Yull Park, 2019. "Additive Aerodynamic and Thermal Effects of a Central Guide Post and Baffle Installed in a Solar Updraft Tower," Energies, MDPI, vol. 12(18), pages 1-13, September.

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