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dc.contributor.authorFolch Manzanares, Rogercat
dc.contributor.authorCasademunt i Viader, Jaumecat
dc.contributor.authorHernández Machado, Auroracat
dc.description.abstractWe show that a minimal model for viscous fingering with a nematic liquid crystal in which anisotropy is considered to enter through two different viscosities in two perpendicular directions can be mapped to a twofold anisotropy in the surface tension. We numerically integrate the dynamics of the resulting problem with the phase-field approach to find and characterize a transition between tip splitting and side branching as a function of both anisotropy and dimensionless surface tension. This anisotropy dependence could explain the experimentally observed (reentrant) transition as temperature and applied pressure are varied. Our observations are also consistent with previous experimental evidence in viscous fingering within an etched cell and simulations of solidification.eng
dc.format.extent7 p.-
dc.publisherThe American Physical Societyeng
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofPhysical Review E, 2000, vol. 61, núm. 6, p. 6632-6638-
dc.rights(c) The American Physical Society, 2000eng
dc.subject.classificationDinàmica de fluidscat
dc.subject.classificationCiència dels materialscat
dc.subject.classificationFísica de l'estat sòlidcat
dc.subject.otherFluid dynamicseng
dc.subject.otherMaterials scienceeng
dc.subject.otherSolid state physicseng
dc.titleViscous fingering in liquid crystals: Anisotropy and morphological transitionseng
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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