Abstract : We study the compression of viscous filaments at constant velocity. If slender enough, the filament bends, a viscous analogue of Euler elastic buckling. We measure the characteristic time of this viscous buckling and discuss the link with the elastic critical compression. We show that the analogy only holds in the limit of large capillary numbers. Otherwise capillarity has a stabilizing effect, which suppresses buckling.
https://hal-polytechnique.archives-ouvertes.fr/hal-00996501
Contributeur : Denis Roura
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Soumis le : jeudi 5 juin 2014 - 14:18:04
Dernière modification le : vendredi 31 août 2018 - 09:18:15
Document(s) archivé(s) le : vendredi 5 septembre 2014 - 10:46:34
Marie Le Merrer, David Quéré, Christophe Clanet. Buckling of Viscous Filaments of a Fluid under Compression Stresses. Physical Review Letters, American Physical Society, 2012, 109 (6), pp.064502. 〈10.1103/physrevlett.109.064502〉. 〈hal-00996501〉
