Non-isothermal viscous Cahn-Hilliard equation with inertial term and dynamic boundary conditions
Author(s) -
Cecilia Cavaterra,
Maurizio Grasselli,
Hao Wu
Publication year - 2014
Publication title -
communications on pure andamp applied analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.077
H-Index - 42
eISSN - 1553-5258
pISSN - 1534-0392
DOI - 10.3934/cpaa.2014.13.1855
Subject(s) - cahn–hilliard equation , term (time) , attractor , inertial frame of reference , weak solution , isothermal process , convergence (economics) , boundary value problem , mathematics , heat equation , boundary (topology) , mathematical analysis , physics , classical mechanics , partial differential equation , thermodynamics , quantum mechanics , economics , economic growth
We consider a non-isothermal modified Cahn--Hilliard equation which was previously analyzed by M. Grasselli et al. Such an equation is characterized by an inertial term and a viscous term and it is coupled with a hyperbolic heat equation. The resulting system was studied in the case of no-flux boundary conditions. Here we analyze the case in which the order parameter is subject to a dynamic boundary condition. This assumption requires a more refined strategy to extend the previous results to the present case. More precisely, we first prove the well-posedness for solutions with bounded energy as well as for weak solutions. Then we establish the existence of a global attractor. Finally, we prove the convergence of any given weak solution to a single equilibrium by using a suitable Lojasiewicz--Simon inequality.
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