Abstract
The tangential shear due to the volume- and time-averaged pulsation velocity caused by the thermally controlled bubble growth and successive cyclic departure is found to be responsible for the natural switch from the regime of isolated bubble growth and departure into the regime of mutual interaction bubble growth and departure as the temperature difference between the bubble interface and the surrounding liquid increases. The proposed theoretical model, based only on the first principles, agrees well with the experimental data for boiling water to which it was compared. The new model successfully predicts the isolated and the mutual interaction bubble departure size, and the quantitative description of the natural transition between the two regimes is the essential new feature of this work. This chapter is a slightly abbreviated version of the work published primarily in Kolev (1994).
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