P. Deroussel et al., Mixing of viscous immiscible liquids. Part 2: Overemulsification - interpretation and use, CHEM ENG SC, 56(19), 2001, pp. 5531-5537
In mixing of immiscible fluids, the final steady state drop size distributi
on, corresponding to a minimum mean drop size, is commonly approached in a
monotonic way. There are, however, other scenarios. Overemulsification refe
rs to cases where, (I) after reaching a minimum, the average size increases
and then levels off to a final size, or (II) the average size oscillates.
In case (I) the drop size distribution becomes bimodal after the average si
ze goes through a minimum; gradually, the peak at smaller sizes moves towar
ds the peak at larger sizes resulting in a narrow distribution, An explanat
ion of this phenomenon is offered and ways to exploit it are suggested. (C)
2001 Elsevier Science Ltd. All rights reserved.