download : DiffuserPump-KSME(Fall).hwp

Gated Image Intensifier Ä«¸Þ¶ó¸¦ ÀÌ¿ëÇÑ µðÇ»ÀúÆßÇÁ
³»ºÎÀ¯µ¿ÀåÀÇ PIV °èÃø
(A PIV Measurement of Diffuser Pump Inner Flow Using Gated Image Intensifier Camera)

ÀÓÀ¯Ã»*(Çѱ¹Çؾç´ë ´ëÇпø), ÃÖÀå¿î(IIT), ÀÌ¿µÈ£(Çѱ¹Çؾç´ë)

Yu-Cheong Im*(Graduate School, Korea Maritime Univ.),
 Jang-Woon  Choi(IIT), Young-Ho Lee(Korea Maritime Univ.)

Key Words : PIV(ÀÔÀÚ¿µ»óÀ¯¼Ó°è), Centrifugal Diffuser Pump(¿ø½ÉµðÇ»Á®ÆßÇÁ), Impeller(ÀÓÆç·¯), Rotor-Stator(µ¿Á¤ÀÍ), Velocity Distribution(¼ÓµµºÐÆ÷)

ABSTRACT

 The present experimental study is focused on the application of multi-point simultaneous measurement by PIV(Particle Image Velocimetry) to high-speed analysis of rotor-stator region within centrifugal diffuser pump. 2000rpm is adopted as experimental condition. Optimized cross correlation identification to obtain velocity vectors is implemented by direct calculation of correlation coefficients. Gated image Intenserfier CCD Camera to cope with illumination problem is arranged for accurate PIV measurement of high-speed complex flow. The  velocity distribution, velocity profile, kinetic energy and voticity distribution at two diffrent kinds of impeller blade orientation(62°, 81°), each averaged from 25 instantaneous data, are  represented quantitatively at the rotor and stator interaction region.