Transient Problems. Particles, Drops, and Bubbles

Now let us consider the outer problem of transient mass exchange between a drop (bubble) and a laminar steady-state flow. We assume that the concentration 

Maximum error (in per cent) of formula (5.6.7) for various forms of dependence of the diffusion coefficient on the concentration 

Dependence D = D(c) Range of the parameter b Drops, bubbles 771 = 1 Solid particles m = 2 m = 3 

It was shown in [349] that at high Peclet numbers (in the diffusion boundary layer approximation), by solving the corresponding nonlinear problem on transient mass exchange between drops or bubbles and the flow, one obtains the following expression for the mean Sherwood number  

By replacing both factors on the right-hand side in (5.6.10) by the approximate expressions (4.12.3) and (5.6.8), we obtain 

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