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http://dx.doi.org/10.5916/jkosme.2013.37.2.163

Influence of guide vane shape on the performance and internal flow of a cross flow wind turbine  

Son, Sung-Woo (Graduate School, Mokpo National University)
Singh, Patrick Mark (Graduate School, Mokpo National University)
Choi, Young-Do (Department of Mechanical Engineering, Mokpo National University)
Abstract
In order to make the vertical-axis cross flow wind turbine commercially feasible, a guide vane is adopted and the effect of the guide vane shape is examined in order to improve the wind turbine performance. CFD analysis on the performance and internal flow of the turbine is carried out for the wind turbine model. The result shows that when the guide nozzle is installed, almost over two times of power coefficient are achieved in comparison with the case of no guide nozzle installation. The guide nozzle acts as a role of suppressing the flow resistance at the blade passage, which is found when the guide nozzle is installed. Moreover, in this study, two kinds of the guide vane with a straight type and a curved type are adopted and compared. The curved guide vane nozzle produces higher power coefficient in comparison with that of straight guide vane nozzle.
Keywords
Vertical axis cross flow wind turbine; Guide nozzle; Guide vane; Performance; Internal flow;
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