气候变化领域集成服务门户(CCPortal): Competition Is the Underlying Mechanism Controlling Viscous Fingering and Wormhole Growth

CCPortal

DOI	10.1029/2019GL084795
	Competition Is the Underlying Mechanism Controlling Viscous Fingering and Wormhole Growth
	Cabeza Y.; Hidalgo J.J.; Carrera J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	Viscous fingering and wormhole growth are complex nonlinear unstable phenomena. We view both as the result of competition for water in which the capacity of an instability to grow depends on its ability to carry water. We derive empirical solutions to quantify the finger/wormhole flow rate in single-, two-, and multiple-finger systems. We use these solutions to show that fingering and wormhole patterns are a deterministic result of competition. For wormhole growth, controlled by dissolution, we solve reactive transport analytically within each wormhole to compute dissolution at the wormhole walls and tip. The generated patterns (both for viscous fingering and wormhole growth under moderate Damköhler number values) follow a power law decay of the number of fingers/wormholes with depth with an exponent of −1 consistent with field observations. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Competition; Earth sciences; Geophysics; Hydrology; Field observations; karst; Number of fingers; Power law decay; Reactive transport; Viscous fingering; Viscous fingers; wormholes; Dissolution; field method; karst; observational method; power law; reactive transport
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/170792
作者单位	Institute of Environmental Assessment and Water (IDAEA), Spanish National Research Council (CSIC), Barcelona, Spain; Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain; Associated Unit: Hydrogeology Group, UPC-CSIC, Barcelona, Spain
推荐引用方式 GB/T 7714	Cabeza Y.,Hidalgo J.J.,Carrera J.. Competition Is the Underlying Mechanism Controlling Viscous Fingering and Wormhole Growth[J],2020,47(3).
APA	Cabeza Y.,Hidalgo J.J.,&Carrera J..(2020).Competition Is the Underlying Mechanism Controlling Viscous Fingering and Wormhole Growth.Geophysical Research Letters,47(3).
MLA	Cabeza Y.,et al."Competition Is the Underlying Mechanism Controlling Viscous Fingering and Wormhole Growth".Geophysical Research Letters 47.3(2020).