Dissolution finger growth in variable aperture fractures: Role of the tip‐region flow field | Zendy

Cheung Wendy | Zendy; Rajaram Harihar | Zendy

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Dissolution finger growth in variable aperture fractures: Role of the tip‐region flow field

Author(s) -

Cheung Wendy,

Rajaram Harihar

Publication year - 2002

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/2002gl015196

Subject(s) - monotonic function , aperture (computer memory) , fracture (geology) , flow (mathematics) , dissolution , computation , materials science , geometry , optics , mathematics , physics , mathematical analysis , chemistry , acoustics , composite material , algorithm

We present high‐resolution computations to demonstrate the influence of the tip‐region flow field on dissolution finger morphology in variable aperture fractures. Linear fingers are observed for small values (<0.1) of the coefficient of variation of the aperture field, whereas for larger values, fingers exhibit significant branching and winding. A consequence of this behavior is that finger breakthrough times vary non‐monotonically with the coefficient of variation of the aperture field. This non‐monotonicity is a robust feature across almost all realizations for in‐plane fracture dimensions > about 25 × 25 correlation lengths.

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