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Mass transfer in the liquid phase during the formation of bubbles

✍ Scribed by P.H. Calderbank; R.P. Patra

Publisher: Elsevier Science
Year: 1966
Tongue: English
Weight: 316 KB
Volume: 21
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(66)80025-8

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✦ Synopsis

Shorter Communications

This equation, if K' is of order unity, produces the correct order of magnitude for u.

In the same way, if the liquid is in laminar flow, we have 566K'G + L a * u=FA 5 0

If in Eqs. ( 6), ( 8) and ( 10) a is substituted by D, all the uncertainty is concentrated in K', which will depend, in general, upon a number of dimensionless groups (E&vi% gp4/pa3, a/D, [(l/pg) (&/&)I), in analogy with the case of vertical tubes [6, 71.

For a free bubble a is of a smaller order of magnitude with respect to D; the pressure gradient effect is therefore expected to be of less importance than in the case of a slug.

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