Penetration and displacement in capillary systems of limited size |
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| Affiliation: | 1. Istituto per le Applicazioni del Calcolo CNR, Via dei Taurini 19, 00185 Rome, Italy;2. Dipartimento di Matematica e Fisica “Ennio De Giorgi”, University of Salento, via Arnesano, 73100 Lecce, Italy;3. Istituto Nanoscienze-CNR, Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT), via Arnesano, 73100 Lecce, Italy;1. School of Info. and Elec. Eng., China Univ. of Mining and Technology, China;2. School of Info. and Elec. Eng., Jiangsu Vocational College of Business, China;3. Insti. of Image Commu. & Infor. Proce., Shanghai Jiao Tong University, China;4. School of Compu. and Soft., Nanjing Univ. of Information Science and Technology, China;1. School of Computer Science, Fudan University, Shanghai 200433, China;2. Department of Computer Science, University of California, Irvine, CA 92697-3435, United States |
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| Abstract: | The unique features of capillary penetration and displacement in systems of limited size are described. These include the dependence of the criteria and kinetics of penetration and displacement on the curvatures of the liquid reservoirs, the effect of thinness of the porous medium on the extent of penetration (the reexposure effect); and the effect of nonuniformity in the pore size distribution on the kinetics of penetration (the redistribution effect). It is shown that systems of limited size may be characterized by thermodynamic equilibrium states as well as kinetics, which are very different from those associated with large systems. |
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