Role of pore structure on liquid flow behaviors in porous media characterized by fractal geometry

Chen, Yongping; Shen, Chaoqun; Lu, Pengfei; Huang, Yongping

doi:10.1016/j.cep.2014.11.014

Cited by 21 publications

(24 citation statements)

References 18 publications

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“…The fluid flow through the interconnected network of channels in media with the fractal porosity is unevenly distributed, while the flow resistance at different locations is strongly correlated [27,28]. Accordingly, it is expected that the diffusion of fluid momentum in fractally permeable media can be anomalous.…”

Section: Introductionmentioning

confidence: 96%

Anomalous diffusion of fluid momentum and Darcy-like law for laminar flow in media with fractal porosity

et al. 2016

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Section: Introductionmentioning

confidence: 96%

Anomalous diffusion of fluid momentum and Darcy-like law for laminar flow in media with fractal porosity

et al. 2016

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“…Moreover, in recent years several fractal models have been proposed, for example, in order: to study spontaneous imbibition process in different rock types, fibrous materials, and silica glass [47]; to stream current in porous media [48]; to demonstrate that the heterogeneity of the Geysers rocks can be determined quantitatively using fractal dimension [49]; to evaluate and predict thermal conductivity, permeability, diffusion and sorptivity coefficient taking into account pore size distribution influence [42,[50][51][52][53][54].…”

Section: Introductionmentioning

confidence: 99%

On the elastic deformation properties of porous ceramic materials obtained by pore-forming agent method

Pia

Casnedi

Ionta

et al. 2015

Ceramics International

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“…A larger surface fractal dimension indicates a more intricate pore surface . Since the complexity of the pore surface directly affects the mass transport phenomena, the surface fractal dimension can be associated with the electrodes' capability in mass transport …”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19][20][21][22] Since the complexity of the pore surface directly affects the mass transport phenomena, the surface fractal dimension can be associated with the electrodes' capability in mass transport. [23][24][25] Accurate determination of the electrode's porous structure depends to a large extent on the specifications of the experimental techniques employed. The techniques used to determine the pore structure can be classified into two categories: fluid type and radiation type.…”

Section: Introductionmentioning

confidence: 99%

Geometric pore surface area and fractal dimension of catalyzed electrodes in polymer electrolyte membrane fuel cells

et al. 2018

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Summary Geometric pore surface area is a significant parameter for the description of the irregular, somewhat random, porous structure of the catalyzed electrodes in polymer electrolyte membrane (PEM) fuel cells; however, its value is sensitive to the experimental methods employed, which necessitates the measurements via different methods. In this study, the geometric surface area of the porous electrode is determined by two different methods: the method of standard porosimetry (MSP) and Brunauer‐Emmett‐Teller (BET). The theory of fractal dimension is employed to analyze the data obtained from the MSP, and the fractal surface area calculated using nitrogen molecules as the scale is compared with the BET surface area. The results indicate that the geometric pore surface area is a property of the porous electrode that depends greatly on the “scale” size (ie, molecule size of the working fluid)—a smaller scale yields a larger value of the surface area. The surface area determined by the BET is found to be about one order of magnitude larger than that obtained by the MSP. Thus, the fractal dimension theory based on MSP demonstrates a useful tool to determine the accessible pore surface area at different length scales.

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Role of pore structure on liquid flow behaviors in porous media characterized by fractal geometry

Cited by 21 publications

References 18 publications

Anomalous diffusion of fluid momentum and Darcy-like law for laminar flow in media with fractal porosity

Anomalous diffusion of fluid momentum and Darcy-like law for laminar flow in media with fractal porosity

On the elastic deformation properties of porous ceramic materials obtained by pore-forming agent method

Geometric pore surface area and fractal dimension of catalyzed electrodes in polymer electrolyte membrane fuel cells

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