A Study on the Flow Characteristics of the Triple Jets Using Particle Image Velocimetry

PIV를 이용한 삼중 제트의 유동 특성에 관한 연구

  • 이명재 (부산대학교 대학원) ;
  • 윤순현 (부산대학교 기계공학과) ;
  • 김동건 (부산대학교 기계기술연구소) ;
  • 김문경 (창원전문대학 기계설계학과)
  • Published : 2005.12.01


Experiments were conducted to show the characteristics of the flow on triple parallel plane impinging jets. Measurements of mean velocity components and turbulent intensities were carried out with a particle image velocimetry(PIV) to investigate the flow field generated by the air issued from three identical plane parallel nozzles and mixed with the ambient air. The measurements range of these experiments were Reynolds number of 5000 and 1000 based on the nozzle width and the case of nozzle-to-plate distances were two times, six times and ten times the width of the nozzle. Results show that recirculation region of Re=5000 is the stronger than that of Re=1000. Therefore, velocity loss of centerline for Re=5000 that shows strongly recirculation region takes effect greatly.