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Issue 37, 2016
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Geometrical instability in the imbibition of a sphere

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Abstract

We study the imbibition of a spherical porous aggregate. When the difference in pressure between the inside and the outside of the aggregate is large enough, the imbibition front becomes unstable. This instability leads to the acceleration of the imbibition process. In more complex geometries with non-constant curvatures, the imbibition becomes locally unstable in the regions with the highest curvatures, leading to spatially heterogeneous front velocities.

Graphical abstract: Geometrical instability in the imbibition of a sphere

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Article information


Submitted
22 Jun 2016
Accepted
19 Aug 2016
First published
22 Aug 2016

Soft Matter, 2016,12, 7759-7763
Article type
Paper

Geometrical instability in the imbibition of a sphere

A. Debacker, D. Lootens and P. Hébraud, Soft Matter, 2016, 12, 7759
DOI: 10.1039/C6SM01432A

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