Many tests have been conducted on models in a wind tunnel for an optimum configuration of a Savonius rotor wind turbine. Three types of Savonius rotor have been used (a simple Savonius rotor of mild steel, an overlapped Savonius rotor of mild steel and one overlapped Savonius rotors of aluminium). The effect of different design parameters, namely rotor shape, overlap between rotor blades was studied. The results have corroborated some of the original findings of Savonius.
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References
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