气候变化领域集成服务门户(CCPortal): Pore structure characterization through path-finding and Lattice Boltzmann simulation

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DOI	10.1016/j.advwatres.2020.103609
	Pore structure characterization through path-finding and Lattice Boltzmann simulation
	Viberti D.; Peter C.; Salina Borello E.; Panini F.
发表日期	2020
ISSN	0309-1708
卷号	141
英文摘要	Characterization of underground porous media parameters at the micro and macro scales is fundamental in geosciences. A thorough comprehension of flow phenomena requires analyses and observations at the micro scale through adoption of micromodels as representative as possible of real geological formations. In this paper we focus on the analysis of 2D binary images of real rock thin sections to characterize pore network geometry and to estimate effective porosity, pore size distribution and tortuosity with the aim of providing suitable information for designing micromodels. To this end, a geometrical analysis of the pore structure, based on the identification and characterization of the set of the shortest geometrical pathways between inlets and outlets pairs, was implemented. The geometrical analysis is based on a path-finding algorithm derived from graph theory. Results provided by geometrical analysis were validated against hydrodynamic numerical simulation via the Lattice Boltzmann Method (LBM). Results show that the path-finding approach provides reasonable and reliable estimates of tortuosity and can be successfully applied for analyzing the distribution of effective pore radius, as well as for estimating the effective porosity. © 2020 Elsevier Ltd
关键词	Binary images Geometry Graph algorithms Graph theory Numerical methods Pore size Effective pore radius Geological formation Geometrical analysis Lattice boltzmann methods (LBM)Lattice Boltzmann simulations Path-finding algorithms Pore network geometry Pore structure characterizations Pore structure algorithm computer simulation flow field hydrodynamics model test model validation numerical model pore pressure porosity porous medium theoretical study tortuosity
语种	英语
来源机构	Advances in Water Resources
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131788
推荐引用方式 GB/T 7714	Viberti D.,Peter C.,Salina Borello E.,et al. Pore structure characterization through path-finding and Lattice Boltzmann simulation[J]. Advances in Water Resources,2020,141.
APA	Viberti D.,Peter C.,Salina Borello E.,&Panini F..(2020).Pore structure characterization through path-finding and Lattice Boltzmann simulation.,141.
MLA	Viberti D.,et al."Pore structure characterization through path-finding and Lattice Boltzmann simulation".141(2020).