气候变化领域集成服务门户(CCPortal): Upscaling transport of a sorbing solute in disordered non periodic porous domains

CCPortal

DOI	10.1016/j.advwatres.2020.103574
	Upscaling transport of a sorbing solute in disordered non periodic porous domains
	Sherman T.; Bianchi Janetti E.; Guédon G.R.; Porta G.; Bolster D.
发表日期	2020
ISSN	0309-1708
卷号	139
英文摘要	Spatial Markov random walk models (SMM) have been demonstrated to accurately predict conservative solute transport across a wide range of hydro-geological systems, with recent advances enabling the SMM to model systems with linear kinetic reactive processes. However, the proposed reactive SMM's applicability is limited to systems that can be partitioned into a series of identical periodic cells where travel times across cells are highly correlated to the solute's entrance position at the cell inlet. In real geologic settings, the spatial layout and size of grains varies through space, decorrelating the relationship between travel time and transverse position. Here, we generalize previous SMM implementations and implement a Bernoulli CTRW, where transport behavior can be captured in disordered and non-periodic porous media. We validate our upscaled model predictions with results from direct numerical simulation of transport in a 2D porous column that cannot be partitioned into identical periodic elements. We parameterize our model based on a subset of simulation statistics and explore how model accuracy changes due to our sampling method. This finding yields important insights for optimizing efficiency of the upscaled transport model parameterization and can guide field sampling of geological structures as well as multiscale investigation of laboratory observations. © 2020 Elsevier Ltd
关键词	Geology Porous materials Sampling Solute transport Travel time Geological structures Geological systems Highly-correlated Periodic elements Periodic porous media Random walk models Transport behavior Transport modeling Importance sampling computer simulation hydrogeology Markov chain numerical model parameterization porous medium prediction solute transport upscaling
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/131817
推荐引用方式 GB/T 7714	Sherman T.,Bianchi Janetti E.,Guédon G.R.,et al. Upscaling transport of a sorbing solute in disordered non periodic porous domains[J]. Advances in Water Resources,2020,139.
APA	Sherman T.,Bianchi Janetti E.,Guédon G.R.,Porta G.,&Bolster D..(2020).Upscaling transport of a sorbing solute in disordered non periodic porous domains.,139.
MLA	Sherman T.,et al."Upscaling transport of a sorbing solute in disordered non periodic porous domains".139(2020).