Steady-state composition of a two-component gas bubble growing in a liquid solution: self-similar approach

Details Steady-state composition of a two-component gas bubble growing in a liquid solution: self-similar approach Steady-state composition of a two-component gas bubble growing in a liquid solution: self-similar approach

2009-12-04

arxiv.org/abs/0912.0877v1

Physics

Fluid Dynamics

12 pages, 2 figures

Scientific paper

The paper presents an analytical description of the growth of a two-component bubble in a binary liquid-gas solution. We obtain asymptotic self-similar time dependence of the bubble radius and analytical expressions for the non-steady profiles of dissolved gases around the bubble. We show that the necessary condition for the self-similar regime of bubble growth is the constant, steady-state composition of the bubble. The equation for the steady-state composition is obtained. We reveal the dependence of the steady-state composition on the solubility laws of the bubble components. Besides, the universal, independent from the solubility laws, expressions for the steady-state composition are obtained for the case of strong supersaturations, which are typical for the homogeneous nucleation of a bubble.

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