Multiscale modeling of fluid transport in heterogeneous materials using discrete Boltzmann methods

The lattice Boltzmann method is a promising approach for modeling single and multicomponent fluid flow in complex geometries like porous materials. Here, we review some of our previous work and discuss some recent developments concerning fluid flow in multiple pore size materials. After presenting s...

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Bibliographic Details
Published in:Materials and structures 2002-12, Vol.35 (10), p.650-658
Main Authors: Martys, N S, Hagedorn, J G
Format: Article
Language:English
Subjects:
Boltzmann equation
Building construction
Building materials
Civil engineering
Computational fluid dynamics
Computer simulation
Digitization
Fluid flow
Fluids
Lattices
Mathematical models
Porous materials
Studies
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Summary:The lattice Boltzmann method is a promising approach for modeling single and multicomponent fluid flow in complex geometries like porous materials. Here, we review some of our previous work and discuss some recent developments concerning fluid flow in multiple pore size materials. After presenting some simple test cases to validate the model, results from large scale simulations of single and multi-component fluid flow through digitized Fontainebleau sandstone, generated by X-Ray microtomography, are given. Reasonably good agreement was found when compared to experimentally determined values of permeability for similar rocks. Finally, modification of the lattice Boltzmann equations, to describe flow in microporous materials, is described. The potential for modeling flows in other microstructures of interest to concrete technology will be discussed.[PUBLICATION ABSTRACT]
ISSN:1359-5997
1871-6873
DOI:10.1007/BF02480358