Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Flow Characteristics around Archimedes Wind Turbine according to the Change of Angle of Attack

받음각 변화에 따른 아르키메데스 풍력발전 날개 주위의 유동장 변화

  • Li, Qiang (School of Mechanical Engineering, Pusan National University) ;
  • Kim, Hyun Dong (School of Mechanical Engineering, Pusan National University) ;
  • Ji, Ho Seong (School of Mechanical Engineering, Pusan National University) ;
  • Kim, Kyung Chun (School of Mechanical Engineering, Pusan National University)
  • Received : 2013.03.21
  • Accepted : 2013.04.04
  • Published : 2013.04.25
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Abstract

This paper describes aerodynamic characteristics of an Archimedes spiral wind turbine with various angles of attack. The range of angles was controlled from $-30^{\circ}$ (clockwise) to $+30^{\circ}$ (clockwise). The rotating speed of wind turbine at the same angle of attack in both directions was different. The reason why the-maximum rotational speed was observed at $15^{\circ}$ in clockwise direction can be explained based on angular momentum conservation. Quantitative flow visualization around Archimedes wind turbine blade was carried out between $-15^{\circ}$ (clockwise) and $+15^{\circ}$ (counter clockwise) using high resolution PIV method. The relationship between drag force and rotating speeds was discussed. From these results, optimum design on yawing system of Archimedes spiral wind turbine may provide high efficiency on small wind power system.

Keywords

References

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Cited by

  1. Process Design of Conical Roll-Shaping for Fabrication of Variable Curvature Spiral Blade vol.33, pp.11, 2016, https://doi.org/10.7736/KSPE.2016.33.11.911