Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Behavior of an Impinging Droplet on a Solid Surface with a Variation of Liquid Temperature

액체 온도 변화에 따른 평판 충돌 액적의 거동에 관한 연구

  • 이동조 (고려대학교 대학원 기계공학과) ;
  • 박병성 (고려대학교 대학원 기계공학과) ;
  • 정진택 (고려대학교 기계공학과) ;
  • 김호영 (고려대학교 기계공학과)
  • Published : 2005.03.01
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Abstract

An experimental study on the behavior of droplets impinging on a solid flat surface was carried out in the present study. Breakup of a liquid droplet impinging on a solid surface has been investigated experimentally for various liquids with different properties. The liquid droplet temperature and incident angle were chosen as major parameters. Liquid droplet temperature and incident angle varied in the range from $-20{\circ}C\;to\;30{\circ}C\;and\;from\;30{\circ}\;to\;60{\circ},$ respectively. It was found that the variation of droplet temperature influences upon the mean diameter and uniformity of droplets which were bounced out from the solid surface. With increase of incident angle the dispersion mass fraction increases, causing the decrease of liquid film flow rate. As the liquid temperature increases, dispersion mass fraction increases since the surface tension decreases.

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References

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