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Physicomathematical modeling of the processes of capillary impregnation of porous materials

Zhilin, A. ; Fedorov, A.

Journal of Applied Mechanics and Technical Physics, 2009, Vol.50(1), pp.35-43 [Periódico revisado por pares]

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  • Título:
    Physicomathematical modeling of the processes of capillary impregnation of porous materials
  • Autor: Zhilin, A. ; Fedorov, A.
  • Assuntos: capillary impregnation ; porous materials ; diffusion
  • É parte de: Journal of Applied Mechanics and Technical Physics, 2009, Vol.50(1), pp.35-43
  • Descrição: The process of capillary impregnation of porous materials is studied numerically. A physicomathematical model of liquid diffusion in a porous sample is proposed. The model involves an analytical presentation of the diffusion coefficient, which describes available experimental data. A method of solving one-dimensional unsteady problems of impregnation is developed and tested on a self-similar solution of the corresponding boundary-value problem of impregnation. If the impregnation process is sufficiently long, the motion of the liquid in the sample is described by a stable self-similar solution. A classification of moisture diffusion on the basis of the initial humidity on the sample boundary is proposed.
  • Idioma: Inglês

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