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Vapour bubble departure in forced convection boiling.

Author(s) : KLAUSNER J. F., MEI R., BERNHARD D. M., ZENG L. Z.

Type of article: Article

Summary

It has been observed that once a vapour bubble departs from its nucleation site, it typically slides along the heating surface and lifts off at some finite distance downstream. A detailed analysis of various forces acting on the bubble is presented and is used to predict the mean departure diameter. The onset of imbalance between the quasi-steady drag, the unsteady component of the drag due to asymmetrical bubble growth, and the surface tension force in the flow direction is used as a criterion for departure and yields satisfactory agreement between the measured and predicted values of the mean departure diameter.

Details

  • Original title: Vapour bubble departure in forced convection boiling.
  • Record ID : 1993-2535
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 36 - n. 3
  • Publication date: 1993/02

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