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받음각 변화에 따른 아르키메데스 풍력발전 날개 주위의 유동장 변화

Flow Characteristics around Archimedes Wind Turbine according to the Change of Angle of Attack

  • 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)
  • 투고 : 2013.03.21
  • 심사 : 2013.04.04
  • 발행 : 2013.04.25

초록

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.

키워드

참고문헌

  1. Dalley, S., Oleson, J. P., 2003, "Sennacherib, Archimedes, and the Water Screw: The Context of Invention in the Ancient World", Technology and Culture Vol. 44(1).
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  8. Lu Q., Li Q., Kim Y. K. and Kim K. C., 2012, "A study on design and aerodynamic characteristics of a spiral-typewind turbine blade", KSV, Vol. 10(1), pp. 27-33. https://doi.org/10.5407/JKSV.2012.10.1.027

피인용 문헌

  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