A Savonius wind turbine is simple in structure and has self-starting ability; however the efficiency of Savonius rotors is
low. Numerous researches using Computational fluid dynamics (CFD) have been done in order to enhance the Savonius
rotor performance. Recent studies indicate that interactions between Savonius turbines in a cluster result in increasing the
output power of the individual rotors. In this study numerical solution are obtained for a cluster consisting of three turbines
to determine the enhanced performance of the turbines. Different separation distances and relative phase angles between the
rotors were studied, for future evaluation of periodic wind farms. The commercial computational fluid dynamics software
FLUENT 14.5 is used for the numerical simulation.
M M Shaheen has completed his MSc in Mechanical Engineering from the Military Technical College, Egypt and he is now a PhD candidate at Department of
Aerospace Engineering and Engineering Mechanics, University of Cincinnati.
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