LAPSE:2018.0883
Published Article
LAPSE:2018.0883
Investigation of the Optimal Omni-Direction-Guide-Vane Design for Vertical Axis Wind Turbines Based on Unsteady Flow CFD Simulation
November 27, 2018
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%.
Keywords
Computational Fluid Dynamics, guide vane, shape ratio, turbulence model, vertical axis wind turbine
Suggested Citation
Shahizare B, Nazri Bin Nik Ghazali N, Chong WT, Tabatabaeikia SS, Izadyar N. Investigation of the Optimal Omni-Direction-Guide-Vane Design for Vertical Axis Wind Turbines Based on Unsteady Flow CFD Simulation. (2018). LAPSE:2018.0883
Author Affiliations
Shahizare B: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia [ORCID]
Nazri Bin Nik Ghazali N: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia [ORCID]
Chong WT: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia [ORCID]
Tabatabaeikia SS: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia [ORCID]
Izadyar N: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Journal Name
Energies
Volume
9
Issue
3
Article Number
E146
Year
2016
Publication Date
2016-03-02
Published Version
ISSN
1996-1073
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Original Submission
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PII: en9030146, Publication Type: Journal Article
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LAPSE:2018.0883
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doi:10.3390/en9030146
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Nov 27, 2018
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CC BY 4.0
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Nov 27, 2018
 
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Nov 27, 2018
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Calvin Tsay
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