Morphology changes in the evolution of liquid two-layer films

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dc.creatorPototsky, Andrey
dc.creatorBestehorn, Michael
dc.creatorMerkt, Domnic
dc.creatorThiele, Uwe
dc.date2004-12-15
dc.date2005-02-01
dc.date.accessioned2026-07-07T06:24:09Z
dc.date.available2026-07-07T06:24:09Z
dc.descriptionWe consider two thin layers of immiscible liquids on a heated solid horizontal substrate. The free liquid-liquid and liquid-gas interfaces of such a two-layer (or bilayer) liquid film may be unstable due to effective molecular interactions or the Marangoni effect. Using a long wave approximation we derive coupled evolution equations for the interafce profiles for a general non-isothermal situation allowing for slip at the substrate. Linear and nonlinear analyses are performed for isothermal ultrathin layers below 100 nm thickness under the influence of destabilizing long-range and stabilizing short-range interactions. Flat films may be unstable to varicose, zigzag or mixed modes. During the long-time evolution the nonlinear mode type can change via switching between two different branches of stable stationary solutions or via coarsening along a single such branch.
dc.description14 eps figures and 1 tex file
dc.identifierhttps://arxiv.org/abs/nlin/0412039
dc.identifierhttp://arxiv.org/abs/nlin/0412039
dc.identifierJ. Chem. Phys. 122, 224711 (2005)
dc.identifierdoi:10.1063/1.1927512
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96449
dc.subjectPattern Formation and Solitons
dc.titleMorphology changes in the evolution of liquid two-layer films
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