Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Characteristics of SMD and Volume Flux of Two-phase Jet Injected into Cross-flow with Various Gas-liquid Ratio and Reynolds Number

횡단 유동장의 기액비 및 레이놀즈수 변화에 따른 외부혼합형 이상유체 제트의 액적크기 및 체적유속 특성

  • Kim, Jong-Hyun (Department of Mechanical Design, Dongyang Technical College) ;
  • Lee, Bong-Soo (Korea Machinery-Meter and Petrochemical Testing & Research Institute) ;
  • Koo, Ja-Ye (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • 김종현 (동양공업전문대학 기계설계과) ;
  • 이봉수 (한국기기유화시험연구원) ;
  • 구자예 (한국항공대학교 항공우주 및 기계공학부)
  • Published : 2009.03.01
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Abstract

A study was performed to investigate the characteristics of two-phase jet injected into subsonic cross-flow using the external mixed gas blast two-phase nozzle. The shadowgraph method was adopted for the cross-flow jet visualization and PDPA system was used to measure droplet size, velocity, and volume flux. The atomization of two-phase jet is initially determined according to gas to liquid mass flow-rate ratio and the Reynolds number of cross-flows. The highest penetration trajectories of two-phase jet injected into cross-flow are governed by the momentum ratio at subsonic cross-flow. As GLR of two-phase jet injected into cross-flow increases, the droplet size decreases and the distribution area of volume flux increases. The distribution of volume flux that influenced by the counter vortex pair at the downstream of cross-flow is symmetric in shape of horseshoe.

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References

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