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Transport phenomena in the thin-film region of a micro-channel.

Author(s) : PARK K., NOH K. J., LEE K. S.

Type of article: Article

Summary

A mathematical model to predict the flow and heat transfer characteristics for a thin film region of a micro-channel is proposed. The gradient of the vapour pressure and the capillary force were considered and the effects of channel height, heat flux and slip boundary condition at the solid-liquid interface were investigated. The length of the thin film region is calculated by comparing the magnitude of the capillary and disjoining pressures. The length and the thickness of the thin film region decreased exponentially with increasing heat flux. The channel height has no effect on the shape of film thickness. In the case of slip conditions, the decreased film thickness causes the capillary and disjoining pressures to increase.

Details

  • Original title: Transport phenomena in the thin-film region of a micro-channel.
  • Record ID : 2004-1085
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 46 - n. 13
  • Publication date: 2003/06

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