The paper describes the experimental investigation of the biplane Wells turbine for use on a wave power plant. The performance of the biplane turbine was tested in unidirectional steady air flow by varying the model configurations using solidity, gap-to-chord ratio, and rotor stagger angle. It was found that the gap-to-chord ratio and stagger considerably influenced the performance of the biplane turbine due to the mutual interference between the rotor planes.

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,
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,”
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, and
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,”
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