气候变化领域集成服务门户(CCPortal): Efficient Image-Based Simulation of Flow and Transport in Heterogeneous Porous Media: Application of Curvelet Transforms

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DOI	10.1029/2019GL085671
	Efficient Image-Based Simulation of Flow and Transport in Heterogeneous Porous Media: Application of Curvelet Transforms
	Aljasmi A.; Sahimi M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:2
英文摘要	Flow, transport, reaction, adsorption, and deformation (FTRAD) are phenomena that occur in a wide variety of heterogeneous porous media and have been studied for decades. Models of heterogeneous porous formations involve approximations, simplifications, and even unjustified assumptions. With advances in instrumentation, obtaining highly resolved images of such media has become feasible, opening the way to direct image-based simulation of the FTRAD. Such simulations require, however, intensive computations, limiting their utility. We propose a novel methodology whereby (i) the image is taken to the curvelet space, (ii) all the curvelet coefficients that are smaller than a threshold are set to 0, and (iii) the image is reconstructed. By carrying out image-based simulations of diffusion and fluid flow in two distinct types of heterogeneous porous media, we demonstrate that simulations in the reconstructed images yield as accurate results as those in the original ones while speeding up the computation by 2 orders of magnitude or better. Thus, the methodology represents a significant step toward the ultimate goal of making direct image-based simulation of the FTRAD in heterogeneous porous media a standard practice. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Diffusion in liquids; Flow of fluids; Image reconstruction; Porous materials; Curvelet Coefficients; Curvelet transforms; Flow and transport; Heterogeneous porous media; Image-based simulations; Orders of magnitude; Reconstructed image; Standard practices; Transport properties; adsorption; computer simulation; diffusion; fluid flow; heterogeneity; image analysis; instrumentation; porous medium; threshold
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170818
作者单位	Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Aljasmi A.,Sahimi M.. Efficient Image-Based Simulation of Flow and Transport in Heterogeneous Porous Media: Application of Curvelet Transforms[J],2020,47(2).
APA	Aljasmi A.,&Sahimi M..(2020).Efficient Image-Based Simulation of Flow and Transport in Heterogeneous Porous Media: Application of Curvelet Transforms.Geophysical Research Letters,47(2).
MLA	Aljasmi A.,et al."Efficient Image-Based Simulation of Flow and Transport in Heterogeneous Porous Media: Application of Curvelet Transforms".Geophysical Research Letters 47.2(2020).