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

被引：0
|
作者：
Martine Goyeneche
Didier Lasseux
Denis Bruneau
机构：
[1] L.E.P.T.-ENSAM (UMR CNRS 8508),Esplanade des Arts et Métiers
来源：
Transport in Porous Media | 2002年 / 48卷
关键词：
capillary porous medium; films; drying; irreducible saturation; relative permeabilities;
D O I：
暂无
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学科分类号：
摘要：
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.
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页码：125 / 158
页数：33
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