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STOCHASTIC RECONSTRUCTION OF POROUS MEDIA AND EVALUATION OF THEIR EFFECTIVE TRANSPORT PROPERTIES

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F12%3A43894847" target="_blank" >RIV/60461373:22310/12:43894847 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.scopus.com" target="_blank" >http://www.scopus.com</a>

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    STOCHASTIC RECONSTRUCTION OF POROUS MEDIA AND EVALUATION OF THEIR EFFECTIVE TRANSPORT PROPERTIES

  • Original language description

    The performance of a recently proposed reconstruction method, based on simulated annealing, was evaluated by calculating the effective ordinary and Knudsen diffusivities. The validation procedure involved a set of three porous solids with total porosityvarying from 0.178 to 0.322. Each digitised pore structure was thoroughly characterised by counting clusters of the void and solid voxels and by using the local porosity theory. The characterisation showed that the new method was capable of reproducing each phase in the form of a large percolating cluster and a few small non-percolating clusters, even for low-porosity media. This feature of the new method strongly contrasted with the common method of stochastic reconstruction based on simulated annealing, which resulted in replicas with poor pore space connectivity. For estimating effective ordinary and Knudsen diffusivity tensors, methods based upon simulating the Brownian motion of a diffusing particle were chosen. A direct comparison

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    CI - Industrial chemistry and chemical engineering

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2012

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers

  • ISBN

    978-3-9502481-9-7

  • ISSN

  • e-ISSN

  • Number of pages

    16

  • Pages from-to

    945-960

  • Publisher name

    Vienna University of Technolgy

  • Place of publication

    Vienna

  • Event location

    Vienna, Austria

  • Event date

    Sep 10, 2012

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article