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Microscale numerical analyses of charged porous materials

 

Marketed By :  LAP LAMBERT Academic Publishing   Sold By :  Kamal Books International  
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  • Product Description
 

Estimation of effective diffusion coefficients is essential to be able to describe the diffusive transport of solutes in porous media. To estimate the apparent diffusion coefficients, the values of tortuosity and porosity should be known first. Estimation of tortuosity is intricate, particularly with increasing microgeometry complexity in porous media. For many engineering materials, estimation of effective diffusion coefficients have been mostly based on phenomenological equations with no link to underlying microscale properties of these charged materials. In this research a numerical method based on a recently proposed up-scaled Poisson-Nernst-Planck type of equation (PNP) and its microscale counterpart is employed to estimate the tortuosity and thus the effective and apparent diffusion coefficients in thin charged membranes. Beside this, a new mathematical approach for estimation of tortuosity is applied and validated. Steady-state diffusion studies dominate this report; however, the last section of this book briefly introduces transient diffusion through bentonite.

Product Specifications
SKU :COC88122
AuthorArash Mohajeri
LanguageEnglish
BindingPaperback
Number of Pages128
Publishing Year2013-10-23T00:00:00.000
ISBN9783659452260
Edition1 st
Book TypeEarth sciences, geography, environment, planning
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-10-08 00:00:00
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