DOI: 10.1002/2015GL065116
论文题名: Tail shortening with developing eddies in a rough-walled rock fracture
作者: Lee S.H. ; Yeo I.W. ; Lee K.-K. ; Detwiler R.L.
刊名: Geophysical Research Letters
ISSN: 0094-8630
EISSN: 1944-8361
出版年: 2015
卷: 42, 期: 15 起始页码: 6340
结束页码: 6347
语种: 英语
英文关键词: eddy
; non-Fickian tailing
; rock fracture
; solute transport
; tail shortening
Scopus关键词: Channel flow
; Flow of fluids
; Fracture
; Mass transfer
; Radioactive waste transportation
; Radioactive wastes
; Solute transport
; Eddy
; Microscopic observations
; Non-Fickian
; Radioactive waste repository
; Rock fractures
; Rough-walled fractures
; Solute transport model
; Tail shortening
; Transport properties
; eddy
; fracture flow
; fracture propagation
; mass transfer
; numerical model
; radioactive waste
; repository
; rock mechanics
; solute transport
; tailings
英文摘要: Understanding fluid flow and solute transport in rough-walled fractures is important in many problems such as geological storage of CO2 and siting of radioactive waste repositories. The first microscopic observation of fluid flow and solute transport through a rough-walled fracture was made to assess the evolution of eddies and their effect on non-Fickian tailing. A noteworthy phenomenon was observed that as the eddy grew, the particles were initially caught in and swirled around within eddies, and then cast back into main flow channel, which reduced tailing. This differs from the conventional conceptual model, which presumes a distinct separation between mobile and immobile zones. Fluid flow and solute transport modeling within the 3-D fracture confirmed tail shortening due to mass transfer by advective paths between the eddies and the main flow channel, as opposed to previous 2-D numerical studies that showed increased tailing with growing eddies. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84940448493&doi=10.1002%2f2015GL065116&partnerID=40&md5=1fc2f23fc781432155b458ebf3c77f28
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8246
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Recommended Citation:
Lee S.H.,Yeo I.W.,Lee K.-K.,et al. Tail shortening with developing eddies in a rough-walled rock fracture[J]. Geophysical Research Letters,2015-01-01,42(15).