한국분무공학회지 (Journal of ILASS-Korea)

  • 제18권3호
  • /
  • Pages.140-145
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  • 2013
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  • 1226-2277(pISSN)
  • /
  • 2288-9051(eISSN)
한국분무공학회 (Institute for Liquid Atomization and Spray Systems-Korea)
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초임계 환경으로 분사되는 극저온 제트의 분열

Disintegration of Cryogenic Jet in Super-critical Environment

  • 이건웅 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 김도헌 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 구자예 (한국항공대학교 항공우주 및 기계공학부)
  • 투고 : 2013.08.31
  • 심사 : 2013.09.23
  • 발행 : 2013.09.30
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초록

Sub/supercritical spray experiments were conducted, and cryogenic nitrogen and gaseous argon were selected for simulants. liquid nitrogen and gaseous argon were injected in subcritical case, and supercritical nitrogen and near-critical gaseous argon were injected in near-critical/supercritical cases. shadowgraph method was used to visualize spray, and analyzed about the breakup length. The breakup length was measured from numbers of Instantaneous shadowgraph Images from each case, and they were compared with momentum flux ratios and density ratios. It was observed that the relation between breakup length and momentum flux ratio was fitted into former experiment results. and the reasonable constant was suggested about the relation between breakup length and density ratio.

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참고문헌

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