Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Hysteretic Characteristics of Wells Turbine for Wave Energy Conversion

  • Tae-Hun Kim (School of Mechanical Engineering, Pukyong National Univ.) ;
  • Yeon-Won Lee (Department of Mechanical Engineering, Graduated School of Pukyong National Univ.) ;
  • Yeong-Yeun Hwang (School of Electrical control and Instrumentation Engineering)
  • Published : 2003.05.01
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Abstract

The aerodynamic characteristics of the Wells turbine for wave energy conversion have been investigated by the numerical simulation to reproduce hysteretic behaviors. The pressure distributions on the suction surface of the blade were investigated to find out the cause of the hysteretic mechanism. The results have shown that the hysteretic behavior is associated with streamwise vertical flow appearing near the suction surface and become more obvious. as the tip clearance and solidity change. Also it has shown that such phenomena occur due to different behaviors of wakes in the accelerating and decelerating flow process. The CFD analysis shows a good agreement with experimental results.

Keywords

References

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