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A NETWORK SIMULATION FOR DRAINAGE OF STATIC FOAM COLUMNS

DSpace at IIT Bombay

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Field Value
 
Title A NETWORK SIMULATION FOR DRAINAGE OF STATIC FOAM COLUMNS
 
Creator BHAKTA, AR
KHILAR, KC
 
Subject rheology
 
Description A simple cylindrical network consisting of regular hexagons is used to simulate the flow during drainage in a static foam column. The dimensions of the network are calculated by considering the foam to consist of regular pentagonal dodecahedral bubbles. Simulations offer several new insights concerning the microscopic origin of the nonlinearity and inflection in the drainage plot. It is shown that the contraction of Plateau border channels in the presence of bubbles of varying sizes causes the observed nonlinearity in the drainage plot. Inflection in the drainage plot can be observed only when the liquid volume fraction increases with column height. Other calculations concerning the effects of bubble size and column height are consistent with experimental observations.
 
Publisher AMER CHEMICAL SOC
 
Date 2011-07-13T13:48:01Z
2011-12-26T12:47:54Z
2011-12-27T05:41:41Z
2011-07-13T13:48:01Z
2011-12-26T12:47:54Z
2011-12-27T05:41:41Z
1991
 
Type Article
 
Identifier LANGMUIR, 7(8), 1827-1832
0743-7463
http://dx.doi.org/10.1021/la00056a041
http://dspace.library.iitb.ac.in/xmlui/handle/10054/3688
http://hdl.handle.net/10054/3688
 
Language en