Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Study of Wake Control by Blowing and Suction in Front of the Vertical Fence

수직벽 전방에서의 흡입/토출을 이용한 후류제어 연구

  • 최영호 (경상대학교 기계항공공학부) ;
  • 김형범 (경상대학교 항공기부품연구소)
  • Published : 2008.01.01
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Abstract

The effect of periodic blowing and suction of upstream flow on the separated shear flow behind the vertical fence was experimentally investigated. The fence was submerged in the turbulent shear flow and DPIV method was used to measure the instantaneous velocity fields around the fence. Periodic blowing and suction flow was precisely generated by the syringe pump. Spanwise nozzle made 2D planar periodic jet flow in front of the fence and the effect of frequency and maximum jet velocity was studied. From the results, the reattachment length can be reduced by 60% of uncontrolled fence case under the control.

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References

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