Abstract
The aim of this study is to clarify the effect of rotor blade profile on the performance of the Wells turbine operated at high Reynolds number. In the study, four kinds of blade profile were selected with regard to the blade profile of the Wells turbine. The types of blade profile are as follows: NACA0020, NACA0015, CA9, and HSIM 15-262123-1576. In order to determine the optimum rotor blade profile of the turbine, experimental investigations have been performed for two solidities by model testing and numerical simulation. As a result, it has been concluded that a suitable choice, namely the preferable rotor geometry, is the blade profile of NACA0015. Furthermore, it has been found that the critical Reynolds number of the turbine is around 4×105.
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