气候变化领域集成服务门户(CCPortal): Probing Effective Wetting in Subsurface Systems

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DOI	10.1029/2019GL086151
	Probing Effective Wetting in Subsurface Systems
	Sun C.; McClure J.E.; Mostaghimi P.; Herring A.L.; Berg S.; Armstrong R.T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:5
英文摘要	Wetting phenomena are of central importance for many natural and technological processes in subsurface geosciences. Surface roughness, chemical heterogeneity, and dynamic effects cause the microscopic contact angle to vary widely in subsurface multiphase systems. These effects must be characterized in a fundamental and transparent way to determine the overall state of wetting. Here, we apply the Gauss-Bonnet theorem to establish a direct link between the contact angle and bulk fluid topology based on a newly defined term, deficit curvature. The resulting macroscopic measure is able to capture the average effects of complex microscopic variations in contact angle based on intrinsic geometric constraints that are imposed on the curvature of the contact line as a consequence of fluid topology. We show that deficit curvature is able to capture the effects of contact angle hysteresis and describe wetting in multiphase systems where geometrically complex contact lines are present along with surface heterogeneity. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Contact angle; Hysteresis; Multiphase flow; Porous materials; Surface roughness; Topology; Chemical heterogeneities; Contact angle hysteresis; Gauss-Bonnet theorem; Geometric constraint; Microscopic variation; Multi phase systems; Surface heterogeneities; Technological process; Wetting; detection method; hysteresis; multiphase flow; porous medium; roughness; wetting
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/170620
作者单位	School of Minerals and Energy Resources Engineering, University of New South Wales, Kensington, NSW, Australia; Advanced Research Computing, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States; Department of Applied Mathematics, Australian National University, Canberra, ACT, Australia; Rock and Fluid Physics, Shell Global Solutions International B.V., Amsterdam, Netherlands; Department of Earth Science and Engineering, Imperial College London, London, United Kingdom; Department of Chemical Engineering, Imperial College London, London, United Kingdom
推荐引用方式 GB/T 7714	Sun C.,McClure J.E.,Mostaghimi P.,et al. Probing Effective Wetting in Subsurface Systems[J],2020,47(5).
APA	Sun C.,McClure J.E.,Mostaghimi P.,Herring A.L.,Berg S.,&Armstrong R.T..(2020).Probing Effective Wetting in Subsurface Systems.Geophysical Research Letters,47(5).
MLA	Sun C.,et al."Probing Effective Wetting in Subsurface Systems".Geophysical Research Letters 47.5(2020).