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Numerical determination of the effective thermodiffusive coefficients in porous media using an approach at a small scale.

Détermination numérique des coefficients de thermodiffusion effectifs en milieu poreux par une approche à une échelle locale.

Author(s) : ARQUIS E., CALTAGIRONE J. P.

Type of article: Article

Summary

The comparison of some experimental results of thermodiffusion with the prediction of numerical computations leads to the conclusion that the diffusive and thermodiffusive coefficients of the porous material are not well defined. The authors propose, by the mean of an academical study at the scale of a periodic cell of an idealised porous media, a determination of these coefficients, first the case where the transport mechanism is purely diffusive and then the case of a flowing fluid phase.

Details

  • Original title: Détermination numérique des coefficients de thermodiffusion effectifs en milieu poreux par une approche à une échelle locale.
  • Record ID : 1998-0784
  • Languages: French
  • Source: Entropie - vol. 32 - n. 198-199
  • Publication date: 1996
  • Document available for consultation in the library of the IIR headquarters only.

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