Foam clogging

被引：25
作者：
Rouyer, F. [1 ]
Haffner, B. [2 ]
Louvet, N. [3 ]
Khidas, Y. [1 ]
Pitois, O. [2 ]
机构：
[1] Univ Paris Est, CNRS, Ecole Ponts ParisTech, Lab Navier,UMR 8205, F-77454 Champs Sur Marne 2, France
[2] Univ Paris Est, CNRS, Ecole Ponts ParisTech, Lab Navier,UMR 8205, F-77420 Champs Sur Marne, France
[3] Univ Lorraine, LEMTA, UMR 7563, F-54500 Vandoeuvre Les Nancy, France
来源：
SOFT MATTER | 2014年 / 10卷 / 36期
关键词：
FLOW; PERMEABILITY; SUSPENSIONS; TRANSITION; DRAINAGE; CAPTURE; MODEL;
D O I：
10.1039/c4sm00496e
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
To what extent are aqueous foams prone to clogging? Foam permeability is measured as a function of particulate loading (trapped hydrophilic particles) under conditions where the particle to bubble size ratio is allowed to increase when the number of particles per bubble is fixed. In addition to experiments performed on the foam scale, we investigated experimentally and numerically the hydrodynamic resistance of a single foam node loaded with one particle. It is shown that, with respect to solid porous media, aqueous foams clog more efficiently due to two reasons: (i) the deformation of interfaces allows for larger particles to be incorporated within the interstitial network and (ii) the interfacial mobility contributes to lowering of the reduced permeability.
引用
收藏
页码：6990 / 6998
页数：9
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