Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Study on the Phenomena of Droplet Impact onto a Liquid Film

단일 액적의 고체 표면 액막과의 충돌 현상에 관한 연구

  • 고천석 (전남대학교 기계공학부) ;
  • 유준호 (전남대학교 기계공학부) ;
  • 최낙완 (전남대학교 기계공학부) ;
  • 강보선 (전남대학교 기계공학부)
  • Received : 2012.09.21
  • Accepted : 2013.01.23
  • Published : 2013.03.30
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Abstract

In this paper an experimental study is presented to investigate the dynamic behavior of impacting droplet onto a liquid film. The main parameters are the droplet velocity and the thickness of the liquid film. Photographic images are presented to show the formation of crown, central jet and disintegrating droplet from the central jet. The emphasis is on presenting the time evolution of crown diameter, crown height, central jet height and the size of disintegrating droplet from the central jet. The diameter and height of crown are higher for faster droplet and thinner liquid film. On the other hand, the height of central jet are higher for faster droplet and thicker liquid film. The size of disintegrating droplet from the central jet heavily depends on the droplet velocity; Larger droplet is produced with faster falling droplets.

Keywords

References

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