Transport in Porous Media

, Volume 48, Issue 2, pp 125–158

A Film-Flow Model to Describe Free Water Transport during Drying of a Hygroscopic Capillary Porous Medium

  • Martine Goyeneche
  • Didier Lasseux
  • Denis Bruneau
Article

DOI: 10.1023/A:1015646307537

Cite this article as:
Goyeneche, M., Lasseux, D. & Bruneau, D. Transport in Porous Media (2002) 48: 125. doi:10.1023/A:1015646307537

Abstract

In this work, a two-phase film-flow model in a hygroscopic capillary tube is developed and extended to describe the two-phase capillary viscous transport in a network of parallel capillary tubes in terms of relative permeabilities. This film-flow approach is further considered to predict the longitudinal moisture transport in oak wood during drying. Numerical results obtained from this prediction are compared with data of convective drying experiments performed on samples of this wood. The comparison seems to confirm the physical relevance of a film-flow model to correctly represent the moisture transfer until the hygroscopic regime is reached.

capillary porous medium films drying irreducible saturation relative permeabilities 

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Martine Goyeneche
    • 1
  • Didier Lasseux
    • 1
  • Denis Bruneau
    • 1
  1. 1.Esplanade des Arts et MétiersL.E.P.T.-ENSAM (UMR CNRS 8508)Talence CedexFrance