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Study on Vertical Axis Water Turbine with Movable Dual Blades

가변형 이중 날개를 갖는 수직축 수류터빈에 대한 연구

  • Received : 2015.12.28
  • Accepted : 2016.04.22
  • Published : 2016.04.30

Abstract

In this paper, we propose a vertical axis water turbine with dual blades. A parametric study was conducted using numerical analyses. First, a two-dimensional finite-volume analysis with a commercial code was used to find the pitch angle of the main blade under different tip speed ratio conditions. Second, we developed a potential-based panel method to find the best configuration of the inner blades. Experimental tests were conducted at the circulating water channel of Chungnam National University. Various configurations of the dual blades were considered, and their performances were comparatively investigated. The results showed that the turbine with movable dual blades produces a constant torque and tip speed ratio at various flow rates.

Keywords

Renewable energy;Water turbine;Vertical axis turbine;Dual blades;Numerical analysis

References

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