Abstract
The bubbly two-phase flow and electric current density distribution along a single,
vertical, gas-evolving electrode are modelled and the results of a boundary layer
analysis are presented. Existing empirical models for particle transport in sheared and
sedimenting suspensions are adopted for the bubble mixture to close the two-phase
model. Ionic species concentrations are shown to be essentially homogeneous as
the mixing effect of the bubble suspension usually is much larger than dispersion by
molecular diffusion even at laminar flow conditions. The non-uniformity of the bubble
distribution along the electrode results in a non-uniform current density distribution,
which agrees well with existing experimental findings in the literature.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Cited by
57 articles.
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