A103 Experiment of Dimensional Airfoil of Straight Wing Vertical Axis Wind Turbine

Sagara, Keita; Ideno, Masaru; Kagaya, kazuyuki; Horiuchi, Kenji; Seki, Kazuichi

doi:10.1299/jsmepes.2012.17.7

Cited by 1 publication

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“…Based on the past researches, it is known that flow fields around blades and rotor are rather complex with large vortex and separation during blade rotation process 2 International Journal of Rotating Machinery [12][13][14]. Some researchers made efforts to develop new blade airfoils suitable for SB-VAWT, such as Prof. Seki who invented the TWT airfoil [15]. Other researchers made some changes on original blade to decrease vortex and separation, for example, by adding winglet [16,17], making gap or slotting on blade surface [18], and adding auxiliary flat or blade at trailing edge [19,20].…”

Section: Introductionmentioning

confidence: 99%

Effect of Auxiliary Blade on Aerodynamic Characteristics of Vertical Axis Wind Turbine by Numerical Simulation

Zhao

et al. 2019

International Journal of Rotating Machinery

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In order to improve the aerodynamic characteristics of the Straight-bladed Vertical Axis Wind Turbine (SB-VAWT), a rotor structure with auxiliary blade installed behind the main blade was proposed in this study. To investigate the effects of relative thickness and the fixing angle of the auxiliary blade on aerodynamic characteristics of SB-VAWT, numerical simulations were carried out. Two shapes of NACA 4-digital series blade-section, NACA0018 and NACA0024, were selected as the main blades in this work. Effects of relative thickness and fixing angles of auxiliary blade on the aerodynamic performance of SB-VAWT had been analyzed in detail, which had 5 kinds of relative thickness and 3 kinds of fixing angles combined into 13 working conditions. And the main blades and the auxiliary blades were also decided as the NACA series airfoil with five kinds of relative thickness. Three kinds of fixing angle of auxiliary blade installed behind main blade were used including 0°, 5°, and 10°. The simulations included the output power coefficients, the static torque coefficients, and the flow fields around the main blade and auxiliary blade for both the dynamic and static conditions at some typical azimuth angles. The results show that the auxiliary blade with certain relative thickness and fixing angle can improve the output power characteristics and static torque characteristics of SB-VAWT, which can also provide research reference for improving the performance of VAWT.

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Section: Introductionmentioning

confidence: 99%

Effect of Auxiliary Blade on Aerodynamic Characteristics of Vertical Axis Wind Turbine by Numerical Simulation

Zhao

et al. 2019

International Journal of Rotating Machinery

View full text Add to dashboard Cite

show abstract

A103 Experiment of Dimensional Airfoil of Straight Wing Vertical Axis Wind Turbine

Cited by 1 publication

References 0 publications

Effect of Auxiliary Blade on Aerodynamic Characteristics of Vertical Axis Wind Turbine by Numerical Simulation

Effect of Auxiliary Blade on Aerodynamic Characteristics of Vertical Axis Wind Turbine by Numerical Simulation

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