Journal ArticleDOI
A Geometry Model for Tortuosity of Flow Path in Porous Media
TLDR
In this article, a simple geometry model for tortuosity of flow path in porous media is proposed based on the assumption that some particles in a porous medium are unrestrictedly overlapped and the others are not.Abstract:
A simple geometry model for tortuosity of flow path in porous media is proposed based on the assumption that some particles in a porous medium are unrestrictedly overlapped and the others are not. The proposed model is expressed as a function of porosity and there is no empirical constant in this model. The model predictions are compared with those from available correlations obtained numerically and experimentally, both of which are in agreement with each other. The present model can also give the tortuosity with a good approximation near the percolation threshold. The validity of the present tortuosity model is thus verified.read more
Citations
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Journal ArticleDOI
Developing a new form of permeability and Kozeny-Carman constant for homogeneous porous media by means of fractal geometry
TL;DR: In this article, the authors derived an analytical expression for the permeability in homogeneous porous media based on the fractal characters of porous media and capillary model, which is expressed as a function of fractal dimensions, porosity and maximum pore size.
Journal ArticleDOI
Tortuosity in Porous Media: A Critical Review
TL;DR: The concept of tortuosity is used to characterize the structure of porous media, to estimate their electrical and hydraulic conductivity, and to study the travel time and length for tracer dispersion as mentioned in this paper.
Journal ArticleDOI
Generalized Modeling of Spontaneous Imbibition Based on Hagen− Poiseuille Flow in Tortuous Capillaries with Variably Shaped Apertures
TL;DR: A more generalized spontaneous imbibitions model is developed by considering the different sizes and shapes of pores, the tortuosity of imbibition streamlines in random porous media, and the initial wetting-phase saturation and test results show that the generalized model can be used to characterize the spontaneous imbIBition behavior of many different porous media.
Journal ArticleDOI
A Discussion of the Effect of Tortuosity on the Capillary Imbibition in Porous Media
TL;DR: Based on the tortuous capillary model and fractal geometry, the effect of tortuosity on the capillary imbibition in wetting porous media is discussed in this article, where the average height growth of wetting liquid in porous media driven by capillary force following the Lucas-Washburn (LW) law is obtained.
Journal ArticleDOI
Analysis of Flow in Fractal Porous Media
TL;DR: Fractal geometry and technique have the potentials in analysis of flow and transport properties in fractal porous media as mentioned in this paper, and they have been used extensively in the past few decades.
References
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Book
Dynamics of fluids in porous media
TL;DR: In this paper, the Milieux poreux Reference Record was created on 2004-09-07, modified on 2016-08-08 and the reference record was updated in 2016.
Book
Porous Media: Fluid Transport and Pore Structure
TL;DR: In this paper, the authors examined the relationship between transport properties and pore structure of porous material and presented models of pore structures with a discussion of how such models can be used to predict the transport properties of porous media.
Journal ArticleDOI
A new model for determining mean structure parameters of fixed beds from pressure drop measurements: application to beds packed with parallelepipedal particles
Jacques Comiti,Maurice Renaud +1 more
TL;DR: In this paper, a capillary type model with wall effect corrections is proposed to determine the pressure drop through packed beds of parallelepipedal particles, where the tortuosity factor and the dynamic specific surface area are used as mean structure parameters.
Journal ArticleDOI
Permeability and effective porosity of porous media
TL;DR: In this article, a lattice-gas cellular automaton method is used to simulate the dependence on porosity of a flow of Newtonian uncompressible fluid in this two-dimensional porous substance.
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A new model for determining mean structure parameters of fixed beds from pressure drop measurements: application to beds packed with parallelepipedal particles
Jacques Comiti,Maurice Renaud +1 more