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수직벽 전방에서의 흡입/토출을 이용한 후류제어 연구Study of Wake Control by Blowing and Suction in Front of the Vertical Fence
- Other Titles
- Study of Wake Control by Blowing and Suction in Front of the Vertical Fence
- Issue Date
- 2008
- Publisher
- 대한기계학회
- Keywords
- Fence Flow(수직벽 유동); Suction/Blowing(흡입/토출); DPIV(디지털입자화상속도계); Reattachment Length(재부착지점 길이)
- Citation
- 대한기계학회논문집 B, v.32, no.1, pp 47 - 53
- Pages
- 7
- Indexed
- SCOPUS
KCI
- Journal Title
- 대한기계학회논문집 B
- Volume
- 32
- Number
- 1
- Start Page
- 47
- End Page
- 53
- ISSN
- 1226-4881
- 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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