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arXiv · 1304.4503

Analysis of a time discretization scheme for a nonstandard viscous Cahn-Hilliard system

Pierluigi Colli·Gianni Gilardi·Pavel Krejčí·Paolo Podio-Guidugli·Jürgen Sprekels
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Abstract

In this paper we propose a time discretization of a system of two parabolic equations describing diffusion-driven atom rearrangement in crystalline matter. The equations express the balances of microforces and microenergy; the two phase fields are the order parameter and the chemical potential. The initial and boundary-value problem for the evolutionary system is known to be well posed. Convergence of the discrete scheme to the solution of the continuous problem is proved by a careful development of uniform estimates, by weak compactness and a suitable treatment of nonlinearities. Moreover, for the difference of discrete and continuous solutions we prove an error estimate of order one with respect to the time step.

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Pierluigi Colli, Gianni Gilardi, Pavel Krejčí, Paolo Podio-Guidugli, Jürgen Sprekels. 2013-04-16. Analysis of a time discretization scheme for a nonstandard viscous Cahn-Hilliard system. https://doi.org/10.1051/m2an/2014005

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