@article{(Open Science Index):https://publications.waset.org/pdf/12820,
	  title     = {Effect of Blade Number on a Straight-Bladed Vertical-Axis Darreius Wind Turbine},
	  author    = {Marco Raciti Castelli and  Stefano De Betta and  Ernesto Benini},
	  country	= {},
	  institution	= {},
	  abstract     = {This paper presents a mean for reducing the torque
variation during the revolution of a vertical-axis wind turbine
(VAWT) by increasing the blade number. For this purpose, twodimensional
CDF analysis have been performed on a straight-bladed
Darreius-type rotor. After describing the computational model, a
complete campaign of simulations based on full RANS unsteady
calculations is proposed for a three, four and five-bladed rotor
architecture characterized by a NACA 0025 airfoil. For each
proposed rotor configuration, flow field characteristics are
investigated at several values of tip speed ratio, allowing a
quantification of the influence of blade number on flow geometric
features and dynamic quantities, such as rotor torque and power.
Finally, torque and power curves are compared for the analyzed
architectures, achieving a quantification of the effect of blade number
on overall rotor performance.},
	    journal   = {International Journal of Aerospace and Mechanical Engineering},
	  volume    = {6},
	  number    = {1},
	  year      = {2012},
	  pages     = {68 - 74},
	  ee        = {https://publications.waset.org/pdf/12820},
	  url   	= {https://publications.waset.org/vol/61},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 61, 2012},
	}