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A control volume approach for investigating forces on a departing bubble under subcooled flow boiling.

Author(s) : KANDLIKAR S. G., STUMM B. J.

Type of article: Article

Summary

The paper presents the theoretical and experimental work conducted on nucleating vapour bubbles in subcooled flow boiling of water at atmospheric pressure and 60 deg C. The new model and the experimental study confirm that the bubble removal in flow boiling for small diameter bubbles investigated in the study (less than 500 micrometers) is initiated at the front edge of the bubble through a sweep-removal mechanism. Previous models available in the literature consider a force balance on the entire bubble, and are therefore unable to address the effect of a significant reduction in the component of the surface tension force in the flow direction and the leading edge caused by an increase in the upstream contact angle.

Details

  • Original title: A control volume approach for investigating forces on a departing bubble under subcooled flow boiling.
  • Record ID : 1996-2163
  • Languages: English
  • Source: J. Heat Transf. - vol. 117 - n. 4
  • Publication date: 1995/11
  • Document available for consultation in the library of the IIR headquarters only.

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