한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제10권6호
  • /
  • Pages.102-108
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  • 2011
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  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
권호 표지

PIV를 이용한 이중 충돌제트의 유동 특성

Flow Characteristics of Dual Impinging Jets using PIV

  • 김동건 (부산대학교 바이오산업기계공학과) ;
  • 권순홍 (부산대학교 바이오산업기계공학과) ;
  • 정성원 (부산대학교 바이오산업기계공학과) ;
  • 박종민 (부산대학교 바이오산업기계공학과) ;
  • 최원식 (부산대학교 바이오산업기계공학과) ;
  • 김종순 (부산대학교 바이오산업기계공학과) ;
  • 권순구 (부산대학교 바이오산업기계공학과)
  • 투고 : 2011.09.15
  • 심사 : 2011.12.06
  • 발행 : 2011.12.31
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초록

The flow characteristics of unventilated dual impinging jets were experimentally investigated. Two nozzles with an aspect ratio of 20 were separated by 6 nozzle widths. The Reynolds number based on nozzle width and nozzle exit velocity was set to 5,000. A Particle Image Velocimetry (PIV) was used to measure turbulent velocity components. It was found that, when an impingement plate was installed in the converging region, there was a stagnation region in the inner area between nozzles. However, when it was installed in the combined region, both jets were merged and collided into the plate, showing single-jet characteristics. In addition, at a dual impinging jet, as the distance between a nozzle and an impingement plate decreased, the spanwise turbulent intensity at the plate increased.

키워드

참고문헌

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