3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine

Kok Hoe Wong; Wen Tong Chong; Sin Chew Poh; Yui Chuin Shiah; Nazatul Liana Sukiman; Chin Tsan Wang

doi:10.1016/j.renene.2018.05.085

3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine

Kok Hoe Wong, Wen Tong Chong, Sin Chew Poh, Yui Chuin Shiah, Nazatul Liana Sukiman, Chin Tsan Wang

Research output: Contribution to journal › Article › peer-review

83 Citations (Scopus)

Abstract

Three-dimensional numerical simulations have been performed to analyze the aerodynamic characteristics of a straight-bladed NACA0021 vertical axis wind turbine (VAWT). The unsteady flow CFD simulation was validated with the wind tunnel experiment data available in the literature. Sliding mesh method with the SST k-ω turbulence model was employed to simulate the rotational motion of the VAWT using ANSYS Fluent. The study showed a good agreement between the simulation and the wind tunnel testing. Further simulations were carried out to study the effects of a flat plate deflector being placed at the upwind of the VAWT by varying a few parameters including the position, the inclination angle and the length of the flat plate deflector. The simulations showed that the augmented flow occurred at the near wake region where the flow was accelerated and deflected by the deflector before impinging with the turbine; hence the coefficient of power (C_P) of the VAWT improved significantly. However, the performance of the VAWT was highly dependent on the position of the deflector. From the simulation results, with the optimum parameters, the cycle-averaged coefficient of torque was increased about 47.10% higher compared to the VAWT without the deflector.

Original language	English
Pages (from-to)	32-55
Number of pages	24
Journal	Renewable Energy
Volume	129
DOIs	https://doi.org/10.1016/j.renene.2018.05.085
Publication status	Published - 2018 Dec

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.renene.2018.05.085

Cite this

@article{653bd18e722a4d0ab85af555e3f786a7,

title = "3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine",

abstract = "Three-dimensional numerical simulations have been performed to analyze the aerodynamic characteristics of a straight-bladed NACA0021 vertical axis wind turbine (VAWT). The unsteady flow CFD simulation was validated with the wind tunnel experiment data available in the literature. Sliding mesh method with the SST k-ω turbulence model was employed to simulate the rotational motion of the VAWT using ANSYS Fluent. The study showed a good agreement between the simulation and the wind tunnel testing. Further simulations were carried out to study the effects of a flat plate deflector being placed at the upwind of the VAWT by varying a few parameters including the position, the inclination angle and the length of the flat plate deflector. The simulations showed that the augmented flow occurred at the near wake region where the flow was accelerated and deflected by the deflector before impinging with the turbine; hence the coefficient of power (CP) of the VAWT improved significantly. However, the performance of the VAWT was highly dependent on the position of the deflector. From the simulation results, with the optimum parameters, the cycle-averaged coefficient of torque was increased about 47.10% higher compared to the VAWT without the deflector.",

author = "Wong, {Kok Hoe} and Chong, {Wen Tong} and Poh, {Sin Chew} and Shiah, {Yui Chuin} and Sukiman, {Nazatul Liana} and Wang, {Chin Tsan}",

note = "Funding Information: The authors would like to thank the University of Malaya for the UMRG grant (RP043A-17AET) and the RU Grant (ST013-2017). Special appreciation is also credited to the Malaysian Ministry of Higher Education, MOHE for the Fundamental Research Grant Scheme (FP053-2017A). Funding Information: The authors would like to thank the University of Malaya for the UMRG grant ( RP043A-17AET ) and the RU Grant ( ST013-2017 ). Special appreciation is also credited to the Malaysian Ministry of Higher Education , MOHE for the Fundamental Research Grant Scheme ( FP053-2017A ). Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = dec,

doi = "10.1016/j.renene.2018.05.085",

language = "English",

volume = "129",

pages = "32--55",

journal = "Renewable Energy",

issn = "0960-1481",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine

AU - Wong, Kok Hoe

AU - Chong, Wen Tong

AU - Poh, Sin Chew

AU - Shiah, Yui Chuin

AU - Sukiman, Nazatul Liana

AU - Wang, Chin Tsan

N1 - Funding Information: The authors would like to thank the University of Malaya for the UMRG grant (RP043A-17AET) and the RU Grant (ST013-2017). Special appreciation is also credited to the Malaysian Ministry of Higher Education, MOHE for the Fundamental Research Grant Scheme (FP053-2017A). Funding Information: The authors would like to thank the University of Malaya for the UMRG grant ( RP043A-17AET ) and the RU Grant ( ST013-2017 ). Special appreciation is also credited to the Malaysian Ministry of Higher Education , MOHE for the Fundamental Research Grant Scheme ( FP053-2017A ). Publisher Copyright: © 2018 Elsevier Ltd

PY - 2018/12

Y1 - 2018/12

N2 - Three-dimensional numerical simulations have been performed to analyze the aerodynamic characteristics of a straight-bladed NACA0021 vertical axis wind turbine (VAWT). The unsteady flow CFD simulation was validated with the wind tunnel experiment data available in the literature. Sliding mesh method with the SST k-ω turbulence model was employed to simulate the rotational motion of the VAWT using ANSYS Fluent. The study showed a good agreement between the simulation and the wind tunnel testing. Further simulations were carried out to study the effects of a flat plate deflector being placed at the upwind of the VAWT by varying a few parameters including the position, the inclination angle and the length of the flat plate deflector. The simulations showed that the augmented flow occurred at the near wake region where the flow was accelerated and deflected by the deflector before impinging with the turbine; hence the coefficient of power (CP) of the VAWT improved significantly. However, the performance of the VAWT was highly dependent on the position of the deflector. From the simulation results, with the optimum parameters, the cycle-averaged coefficient of torque was increased about 47.10% higher compared to the VAWT without the deflector.

AB - Three-dimensional numerical simulations have been performed to analyze the aerodynamic characteristics of a straight-bladed NACA0021 vertical axis wind turbine (VAWT). The unsteady flow CFD simulation was validated with the wind tunnel experiment data available in the literature. Sliding mesh method with the SST k-ω turbulence model was employed to simulate the rotational motion of the VAWT using ANSYS Fluent. The study showed a good agreement between the simulation and the wind tunnel testing. Further simulations were carried out to study the effects of a flat plate deflector being placed at the upwind of the VAWT by varying a few parameters including the position, the inclination angle and the length of the flat plate deflector. The simulations showed that the augmented flow occurred at the near wake region where the flow was accelerated and deflected by the deflector before impinging with the turbine; hence the coefficient of power (CP) of the VAWT improved significantly. However, the performance of the VAWT was highly dependent on the position of the deflector. From the simulation results, with the optimum parameters, the cycle-averaged coefficient of torque was increased about 47.10% higher compared to the VAWT without the deflector.

UR - http://www.scopus.com/inward/record.url?scp=85049345610&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049345610&partnerID=8YFLogxK

U2 - 10.1016/j.renene.2018.05.085

DO - 10.1016/j.renene.2018.05.085

M3 - Article

AN - SCOPUS:85049345610

SN - 0960-1481

VL - 129

SP - 32

EP - 55

JO - Renewable Energy

JF - Renewable Energy

ER -

3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this