Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Flow Characteristics in Ejector by PIV and CFD

PIV와 CFD에 의한 Ejector내의 유동특성 연구

  • 박지만 (조선대학교 대학원 기계공학과) ;
  • 이행남 (조선대학교 기계공학과) ;
  • 박길문 (조선대학교 기계공학과) ;
  • 이덕구 (조선대학교 대학원 기계공학과) ;
  • 설재림 (조선대학교 대학원 기계공학과)
  • Published : 2003.11.05
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Abstract

The Ejector is used to get low pressure, and it has been applied to a lot of industry field like the heat engine, the fluid instrument power plant, the food industry, environment industry etc... because there are not any problem even it is mixed with a any kind of liquid, gas, and solid. The flow characteristics in ejector are investigated by PIV and CFD. The experiment using PIV measurement for mixing pipe's flow characteristics acquired velocity distribution, kinetic energy distribution, and whirlpool . (Condition : when mixing pipe's diameter ratio is 1:1.9, and the flux is $Q_{1}=1.136{\imath}/s$, $Q_{2}=1.706{\imath}/s$, $Q_{3}=2.276{\imath}/s$. Based on the PIV and the CFD results, the flow characteristics in ejector are discussed, and it shows the validity of this study.

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