LAMARI, Hajer; AMMAR, Amine; LEYGUE, Adrien; CHINESTA, Francisco

doi:10.1088/0965-0393/20/1/015007

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LAMARI, Hajer
Institut de Recherche en Génie Civil et Mécanique [GeM]

AMMAR, Amine
Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]

LEYGUE, Adrien
Institut de Recherche en Génie Civil et Mécanique [GeM]

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Modelling and Simulation in Materials Science and Engineering. 2012-01, vol. 20, n° 1

IOP Publishing

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The dynamics of phase transition in a binary mixture occurring during a quench is studied taking into account composition fluctuations by solving Langer's equation in a domain composed of a certain number of micro-domains. The resulting Langer's equation governing the evolution of the distribution function becomes multidimensional. Circumventing the curse of dimensionality the proper generalized decomposition is applied. The influence of the interaction parameter in the vicinity of the critical point is analyzed. First we address the case of a system composed of a single micro-domain in which phase transition occurs by a simple symmetry change. Next, we consider a system composed of two micro-domains in which phase transition occurs by phase separation, with special emphasis on the effect of the Landau free energy non-local term. Finally, some systems consisting of many micro-domains are considered.< Leer menos

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liquids and polymers

condensed matter

soft matter

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On the solution of the multidimensional Langer's equation using the proper generalized decomposition method for modeling phase transitions

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