@article{(Open Science Index):https://publications.waset.org/pdf/8087, title = {Numerical Analysis of the Influence of Tip Devices on the Power Coefficient of a VAWT}, author = {Federico Amato and Gabriele Bedon and Marco Raciti Castelli and Ernesto Benini}, country = {}, institution = {}, abstract = {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.}, journal = {International Journal of Aerospace and Mechanical Engineering}, volume = {7}, number = {6}, year = {2013}, pages = {1053 - 1060}, ee = {https://publications.waset.org/pdf/8087}, url = {https://publications.waset.org/vol/78}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 78, 2013}, }