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

  • 제27권1호
  • /
  • Pages.17-24
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  • 2003
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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마이크로 채널내 박막영역에서의 증발 모델링

Evaporative Modeling in n Thin Film Region of Micro-Channel

  • 박경우 (한양대학교 최적설계신기술연구센터) ;
  • 노관중 (한양대학교 대학원 기계공학부) ;
  • 이관수 (한양대학교 기계공학부)
  • 발행 : 2003.01.01
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초록

A mathematical model of the hydrodynamic and heat transfer performances of two-phase flow (gas-liquid) in thin film region of micro channel is proposed. For the formulation of modeling, the flow of the vapor phase and the shear stress at the liquid-vapor interface are considered. In this work, disjoining pressure and capillary force which drive the liquid flow at the liquid-vapor interface in thin film region are adopted also. Using the model, the effects of the variations of channel height and heat flux on the flow and heat transfer characteristics are investigated. Results show that the influence of variation of vapor pressure on the liquid film flow is not negligible. The heat flux in thin-film region is the most important operation factor of micro cooler system.

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참고문헌

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