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The permeability tensor for anisotropic nonuniform porous media

โœ Scribed by J.A. Guin; D.P. Kessler; R.A. Greenkorn


Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
173 KB
Volume
26
Category
Article
ISSN
0009-2509

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โœฆ Synopsis


This paper describes a study of the permeability of anisotropic, nonuniform porous media. The approach is through a statistical model of the microstructure of the porous media. Using a capillary-type model with a distribution of pore sizes and orientations, we show that the permeability can be described by a second-order symmetric tensor regardless of the preferential orientation of the pores in the microstructure. We also show that an ergodic assumption is not always true-spatial averages cannot generally be interchanged with mathematical expectations.


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