Universal scaling for the permeability of random packs of overlapping and nonoverlapping particles.

Universal scaling for the permeability of random packs of overlapping and nonoverlapping particles.
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重叠和非重叠颗粒的随机包的渗透性的通用缩放。

DOI:
10.1103/physreve.105.l043301
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发表时间:
2022
期刊:
Physical review. E
影响因子:
--
通讯作者:
Vasseur J
Vasseur J
中科院分区:
--
文献类型:
--
作者:
Vasseur J

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约束多孔介质中的流体渗透率是广泛的理论、工业和自然过程的核心。在这封信中,我们验证了一个缩放的流体渗透率在随机和晶格包的领域,并表明,包的渗透性硬和重叠的领域的任何领域的大小或大小分布崩溃到一个通用的曲线,在所有的孔隙度在的范围内,其中是渗流阈值。我们使用这种普遍性,以证明渗透率可以预测使用渗流理论,Kozeny-Carman模型,和稀释膨胀的斯托克斯理论的晶格模型。这一结果使我们得出结论,反比表面积,而不是一个有效的球体大小或孔径是一个通用的控制长度尺度的水力特性包的球体。最后,我们将这一结果推广到预测一些包凹非球形颗粒的渗透性。
Constraining fluid permeability in porous media is central to a wide range of theoretical, industrial, and natural processes. In this Letter, we validate a scaling for fluid permeability in random and lattice packs of spheres and show that the permeability of packs of both hard and overlapping spheres of any sphere size or size distribution collapse to a universal curve across all porosityin the range of, whereis the percolation threshold. We use this universality to demonstrate that permeability can be predicted using percolation theory at, Kozeny-Carman models at, and dilute expansions of Stokes theory for lattice models at. This result leads us to conclude that the inverse specific surface area, rather than an effective sphere size or pore size is a universal controlling length scale for hydraulic properties of packs of spheres. Finally, we extend this result to predict the permeability for some packs of concave nonspherical particles.
DOI: 10.1016/j.compositesa.2009.04.009
发表时间: 2009-07-01
影响因子: 8.7
作者:
Nabovati, Aydin;Llewellin, Edward W.;Sousa, Antonio C. M.
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DOI: 10.1051/jphyslet:019810042017039300
发表时间: 1981
期刊: Journal De Physique Lettres
影响因子: --
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通讯作者: J. Kertész
DOI: 10.1038/s41598-020-72085-5
发表时间: 2020-09-17
期刊: SCIENTIFIC REPORTS
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