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dc.contributor.authorArroyo Balaguer, Marino
dc.contributor.authorDeSimone, Antonio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III
dc.identifier.citationArroyo, M.; DeSimone, A. Relaxation dynamics of fluid membranes. "Physical review E: statistical, nonlinear, and soft matter physics", Març 2009, vol. 79, núm. 3, p. 031915-1-031915-17.
dc.description.abstractWe study the effect of membrane viscosity in the dynamics of liquid membranes{possibly with free or internal boundaries{ driven by conservative forces (curvature elasticity and line tension) and dragged by the bulk dissipation of the ambient fluid and the friction occurring when the amphiphilic molecules move relative to each other. To this end, we formulate a continuum model which includes a new form of the governing equations for a two-dimensional viscous fluid moving on a curved, time-evolving surface. The effect of membrane viscosity has received very limited attention in previous continuum studies of the dynamics of fluid membranes, although recent coarse-grained discrete simulations suggest its importance. By applying our model to the study of vesiculation and membrane fusion in a simpli ed geometry, we conclude that membrane viscosity plays a dominant role in the relaxation dynamics of fluid membranes of sizes comparable to those found in eukaryotic cells, and is not negligible in many large synthetic systems of current interest.
dc.subjectÀrees temàtiques de la UPC::Física::Física de fluids
dc.subject.lcshLiquid membranes
dc.subject.lcshFluid dynamics
dc.titleRelaxation dynamics of fluid membranes
dc.subject.lemacMembranes líquides
dc.subject.lemacDinàmica de fluids
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorArroyo, M.; DeSimone, A.
upcommons.citation.publicationNamePhysical review E: statistical, nonlinear, and soft matter physics

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