DOI: 10.1002/2016GL069261
论文题名: Microfluidic observation of the onset of reactive-infitration instability in an analog fracture
作者: Osselin F. ; Kondratiuk P. ; Budek A. ; Cybulski O. ; Garstecki P. ; Szymczak P.
刊名: Geophysical Research Letters
ISSN: 0094-8908
EISSN: 1944-8639
出版年: 2016
卷: 43, 期: 13 起始页码: 6907
结束页码: 6915
语种: 英语
英文关键词: dissolution
; fracture flow
; reactive-infiltration instability
Scopus关键词: Dissolution
; Fracture
; Linear stability analysis
; Microfluidics
; Experimental assessment
; Fracture flow
; Gypsum blocks
; Instability theory
; Onset of instabilities
; Polycarbonate plates
; Reactive infiltration
; Stability
英文摘要: Reactive-infiltration instability plays an important role in many geophysical problems yet theoretical models have rarely been validated experimentally. We study the dissolution of an analog fracture in a simple microfluidic setup, with a gypsum block inserted in between two polycarbonate plates. By changing the flow rate and the distance between the plates, we are able to scan a relatively wide range of Péclet and Damkhöhler numbers, characterizing the relative magnitude of advection, diffusion, and reaction in the system. We quantify the characteristic initial wavelengths of the perturbed fronts during the onset of instability. The results agree well with theoretical predictions based on linear stability analysis, thus experimentally validating current reactive-infiltration instability theory and opening new opportunities for experimental assessment of mineral reactivity. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978914823&doi=10.1002%2f2016GL069261&partnerID=40&md5=00c7fb33d2d889d20869d2cb0e3ab01e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9871
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: Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
Recommended Citation:
Osselin F.,Kondratiuk P.,Budek A.,et al. Microfluidic observation of the onset of reactive-infitration instability in an analog fracture[J]. Geophysical Research Letters,2016-01-01,43(13).