Water infiltration in porous materials is investigated in this study. A highly nonlinear hydraulic dtflusivity function is considered in the physical model. The orthogonal collocation method is employedfor solving the governing nonlinear d@erential equation. The present numerical solutions for porou
Nonlinear water diffusion in unsaturated porous solid materials
โ Scribed by S.H. Lin
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 450 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0020-7225
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The application of the converging-diverging pore model, previously developed for the simulation of structural effects on the diffusion of nonadsorbed gases in porous media, to surface transport is described. Good agreement with experimental results reported for surface diffusion of propane and neope
Periodic capillary networks are proposed as models for describing diffusion in porous solids. The capillary network is analyzed by means of the nodal concentration equations for a single unit cell and expressions are derived for the diffusional flux in terms of the macroscopic concentration gradient
The steady state diffusion of gases through capillaries or through the pores of a solid when fusion, bulk flow of the gases is free to the total pressure in the system is constant is considered. I t is shown that the ratio of the molar occur, but in the present situation diffusion rate of the lighte