DOI: 10.1002/2015GL066946
论文题名: Experimental insights on the development of buoyant plumes injected into a porous media
作者: Lyu X. ; Woods A.W.
刊名: Geophysical Research Letters
ISSN: 0094-9478
EISSN: 1944-9209
出版年: 2016
卷: 43, 期: 2 起始页码: 709
结束页码: 718
语种: 英语
英文关键词: buoyancy
; plumes
; porous media
Scopus关键词: Aquifers
; Carbon dioxide
; Groundwater pollution
; Laboratories
; Porous materials
; Buoyancy-driven
; Buoyancy-driven plume
; Injection speed
; Laboratory experiments
; Plume dynamics
; Plumes
; Saline solutions
; Speed increase
; Buoyancy
; aquifer
; buoyancy
; carbon sequestration
; dispersivity
; experimental study
; freshwater input
; plume
; pollutant transport
; porous medium
; solute transport
英文摘要: We describe a series of new laboratory experiments which examine the rise of a two-dimensional buoyancy-driven plume of freshwater through a porous layer initially saturated with aqueous saline solution. Measurements show that the plume head accounts for a constant fraction of about 0.7 of the buoyancy supplied at the source and that it grows as it rises through the porous layer. However, the morphology of the plume head becomes increasingly complex as the ratio of the injection speed to the buoyancy rise speed increases, with the fluid spreading laterally and developing localized buoyant fingers which intermingle with the ambient fluid. Behind the plume head, a tail of nearly constant width develops providing a pathway from the source to the plume head. These starting plume dynamics may be relevant for buoyancy-driven contaminant dispersal and also for the convection which develops during CO2 sequestration as CO2 dissolves into aquifer water. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956683567&doi=10.1002%2f2015GL066946&partnerID=40&md5=eb576c018798534e2be9a570b201fa52
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10441
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: BP Institute, University of Cambridge, Cambridge, United Kingdom
Recommended Citation:
Lyu X.,Woods A.W.. Experimental insights on the development of buoyant plumes injected into a porous media[J]. Geophysical Research Letters,2016-01-01,43(2).