Tortuosity of unsaturated porous fractal materials

被引：17

作者：

Coleman, S. W. ^{[1
]}

Vassilicos, J. C.

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Aeronaut, London SW7 2BY, England

来源：

PHYSICAL REVIEW E | 2008年 / 78卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevE.78.016308

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The tortuosity of a capillary-condensed film of inviscid fluid adsorbed onto fractal substrates as a function of the filling fraction of the fluid has been calculated numerically. This acts as a way of probing the multiscale structure of the objects. It is found that the variation of tortuosity alpha with filling fraction phi is found to follow a power law of the form alpha similar to phi(-epsilon) for both deterministic and stochastic fractals. These numerically calculated exponents are compared to exponents obtained from a phenomenological scaling and good agreement is found, particularly for the stochastic fractals.

引用

页数：11

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