한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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액적의 분사 거동을 지배하는 무차원수에 대한 수치해석적 연구

NUMERICAL STUDY OF THE EFFECTS OF THE GOVERNING NON-DIMENSIONAL PARAMETERS ON THE DROPLET EJECTION BEHAVIOR

  • 김은정 (포항공과대학교 기계공학과) ;
  • 백제현 (포항공과대학교 기계공학과)
  • Kim, E. (Dept. of Mechanical Engineering, POSTECH) ;
  • Baek, J. (Dept. of Mechanical Engineering, POSTECH)
  • 투고 : 2012.03.03
  • 심사 : 2012.05.31
  • 발행 : 2012.06.30
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초록

The droplet ejection behavior from drop-on-demand printhead are investigated numerically in terms of the non-dimensional parameters. The numerical simulation is performed using a volume-of-fluid model. It is important to eject droplet within the printability range, where the droplet is ejected in stable manner without satellite droplets. Generally, the printability range has been determined by Z number, which is the inverse of Oh number. However, it is found that the ejection of droplets with same Z number can exhibit different behavior depending on the value of Ca and We number. Therefore, it is insufficient to determine the printability range only with Z number. Instead, other non-dimensional parameters, such as Ca and We number, should be considered comprehensively.

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참고문헌

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피인용 문헌

  1. 뉴튼유체와 전단희석유체의 액적분사 거동에 대한 수치해석적 연구 vol.17, pp.3, 2012, https://doi.org/10.6112/kscfe.2012.17.3.033