Numerical performance assessment of an innovative Darrieus-style vertical axis wind turbine with auxiliary straight blades

2018 ◽  
Vol 171 ◽  
pp. 769-777 ◽  
Author(s):  
F. Arpino ◽  
M. Scungio ◽  
G. Cortellessa
2018 ◽  
Vol 42 (4) ◽  
pp. 382-392 ◽  
Author(s):  
Ion Paraschivoiu ◽  
Shahrokh Shams ◽  
Norbert V. Dy

During the operation of a Darrieus type vertical axis wind turbine (VAWT), the blade sections are subjected to different flow velocities and incidences that can be converted to mechanical power with varying efficiency depending on the airfoil. The goal of the present study is to emphasize the advantages and the drawbacks of the use of symmetrical, cambered, and laminar airfoil for a typical Darrieus type VAWT. The NACA 0018, FX63-137 and SNLA 18/50 airfoils were selected for this study.


Energy ◽  
2021 ◽  
pp. 120202
Author(s):  
Jie Su ◽  
Yu Li ◽  
Yaoran Chen ◽  
Zhaolong Han ◽  
Dai Zhou ◽  
...  

2012 ◽  
Vol 34 (3) ◽  
pp. 169-184 ◽  
Author(s):  
Hoang Thi Bich Ngoc

Vertical axis wind turbine technology has been applied last years, very long after horizontal axis wind turbine technology. Aerodynamic problems of vertical axis wind machines are discussible. An important problem is the determination of the incidence law in the interaction between wind and rotor blades. The focus of the work is to establish equations of the incidence depending on the blade azimuth, and to solve them. From these results, aerodynamic torques and power can be calculated. The incidence angle is a parameter of velocity triangle, and both the factors depend not only on the blade azimuth but also on the ratio of rotational speed and horizontal speed. The built computational program allows theoretically selecting the relationship of geometric parameters of wind turbine in accordance with requirements on power, wind speed and installation conditions.


2017 ◽  
Author(s):  
Prof. R.K. Bhoyar ◽  
Prof. S.J. Bhadang ◽  
Prof. N.Z. Adakane ◽  
Prof. N.D. Pachkawade

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