Abstract

Offshore large wind turbines attract lots of attention in the decarbonization business. But, the inland region gets left out of this movement. Limited places are suitable for onshore power generation with large propeller wind turbines in Japan. We shed light on vertical-axis small wind turbines which are relatively inexpensive and untroubled. The brimmed diffuser called “Wind Lens” for vertical-axis small wind turbines is studied to improve the generation efficiency of a wind turbine. In this paper, we investigate the influence of the burble inside the wind lens on the amplification of airflow speed using the boundary-layer control technology such as plasma actuator and turbulence tripping. Results show that the wind lens using turbulence tripping is found to be effective to amplify airflow speed.

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