Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12625
Title: Differential spontaneous capillary flow through heterogeneous porous media
Authors: Bal, K
Fan, J
Sarkar, MK
Ye, L
Keywords: Fractal
Heterogeneous porous media
Spontaneous absorption
Transplaner liquid flow
Issue Date: 2011
Publisher: Pergamon Press
Source: International journal of heat and mass transfer, 2011, v. 54, no. 13-14, p. 3096-3099 How to cite?
Journal: International journal of heat and mass transfer 
Abstract: Engineered heterogeneous porous materials with aeolotropic liquid transport properties can have many applications. In this work, spontaneous flow of liquids through layered heterogeneous porous materials is analyzed based on fractal theory. Both capillary pressure and hydraulic resistance are expressed in terms of microscopic variables such as minimum and maximum pore sizes and fractal dimensions. The transplanar liquid flow in terms of the mass absorbed by the different layers against time is computed. The effect of layer configuration and pore size, fractal dimension and porosity in each layer are numerically investigated. It is found that different combinations of porous layers of different porosity and pore size distribution create different absorption patterns, and differential liquid transport properties can be achieved by having a gradient of porosity and pore size across the thickness.
URI: http://hdl.handle.net/10397/12625
ISSN: 0017-9310
EISSN: 1879-2189
DOI: 10.1016/j.ijheatmasstransfer.2011.02.048
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