| DOI: | 10.1002/grl.50564
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| 论文题名: | Interacting length scales in the reactive-infiltration instability |
| 作者: | Szymczak P.; Ladd A.J.C.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8846
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| EISSN: | 1944-8577
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| 出版年: | 2013
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| 卷: | 40, 期:12 | | 起始页码: | 3036
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| 结束页码: | 3041
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| 语种: | 英语
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| 英文关键词: | dissolution
; porous media
; reactive-infiltration instabilities
; wormholing
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| Scopus关键词: | Convection-dominated
; Flowing fluid
; General theory
; Length scale
; Limiting case
; Parameters characterizing
; Porous matrixs
; wormholing
; Porous materials
; Dissolution
; dissolution
; flow modeling
; flow stability
; flow velocity
; fracture mechanics
; infiltration
; porosity
; porous medium
; reaction rate
; wavelength
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| 英文摘要: | The reactive-infiltration instability, which develops when a porous matrix is dissolved by a flowing fluid, contains two important length scales. Here we outline a linear stability analysis that simultaneously incorporates both scales. We show that the commonly used "thin-front" model is a limiting case of a more general theory, which also includes convection-dominated dissolution as another special case. The wavelength of the instability is bounded from below and lies in the range 1 mm to 1 km for physically reasonable flow rates and reaction rates. We obtain a closed form for the growth rate when the change in porosity is small. Key Points There are two competing lengthscales in reactive-infiltration instabilities Previous theories are limiting cases of the model developed here Key parameters characterizing the scale of the developing pattern are identified ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880569284&doi=10.1002%2fgrl.50564&partnerID=40&md5=3e211ffadf73b24228b8384271952af4
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6110
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, Hoza 69, 00-618 Warsaw, Poland
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| Recommended Citation: | |
Szymczak P.,Ladd A.J.C.. Interacting length scales in the reactive-infiltration instability[J]. Geophysical Research Letters,2013-01-01,40(12).
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