%0 Journal Article
	%A Federico Amato and  Gabriele Bedon and  Marco Raciti Castelli and  Ernesto Benini
	%D 2013
	%J International Journal of Aerospace and Mechanical Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 78, 2013
	%T Numerical Analysis of the Influence of Tip Devices on the Power Coefficient of a VAWT
	%U https://publications.waset.org/pdf/8087
	%V 78
	%X The aerodynamic performances of vertical axis wind
turbines are highly affected by tip vortexes. In the present
work, different tip devices are considered and simulated against
a baseline rotor configuration, with the aim of identifying the
best tip architecture. Three different configurations are tested:
winglets, an elliptic termination and an aerodynamic bulkhead.
A comparative analysis on the most promising architectures is
conducted, focusing also on blade torque evolution during a full
revolution of the rotor blade. The most promising technology is
concluded to be a well designed winglet.
	%P 1053 - 1060