NUMERICAL ANALYSIS ON THE EFFECTS OF ARM ON THE STRAIGHT BLADE OF A VERTICAL AXIS WIND TURBINE

Naoki Horita; Yutaka Hara; Chiasa Harada; Shigeo Yoshida; Hiromichi Akimoto; Takahiro Sumi

doi:10.24752/gre.1.0_165

Japan council for Renewable Energy(2018)

DOI https://doi.org/10.24752/gre.1.0_165

Conference information

Host: Japan council for Renewable Energy(2018)

Name : Grand Renewable Energy 2018

Date : June 17, 2018 - June 22, 2018

NUMERICAL ANALYSIS ON THE EFFECTS OF ARM ON THE STRAIGHT BLADE OF A VERTICAL AXIS WIND TURBINE

*Naoki Horita, Yutaka Hara, Chiasa Harada, Shigeo Yoshida, Hiromichi Akimoto, Takahiro Sumi

Author information

Keywords: vertical axis wind turbine, computational fluid dynamics, pressure distribution, drag coefficient

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 165-

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Abstract

Three dimension computational fluid dynamics was carried out to investigate the effects of horizontal arms on the performance of a straight-bladed vertical axis wind turbine. Three rotor models having different arms in terms of the cross section (airfoil, rectangular, circular), in addition to the armless rotor model, were calculated. Pressure-based total drag caused by the existence of arms became the greatest in the case of cylindrical arm, followed by the cases of rectangular arm and airfoil arm.

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