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Journal article

Lateral instability in normal viscous fingers

Abstract:
We study a low-amplitude, long-wavelength lateral instability of the Saffman-Taylor finger by means of a phase-field model. We observe such an instability in two situations in which small dynamic perturbations are overimposed to a constant pressure drop. We first study the case in which the perturbation consists of a single oscillatory mode and then a case in which the perturbation consists of temporal noise. In both cases the instability undergoes a process of selection. © 2005 The American Physical Society.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevE.71.016312

Authors


Journal:
PHYSICAL REVIEW E
Volume:
71
Issue:
1
Publication date:
2005-01-05
DOI:
EISSN:
1550-2376
ISSN:
1063-651X
URN:
uuid:abe554ab-9602-4bf7-a9f6-f422cbf4d448
Source identifiers:
176538
Local pid:
pubs:176538
Language:
English

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