Phase-field model with a reduced interface diffuseness
نویسندگان
چکیده
منابع مشابه
A phase-field model with convection: sharp-interface asymptotics
We have previously developed a phase-field model of solidification that includes convection in the melt [Physica D 135 (2000) 175]. This model represents the two phases as viscous liquids, where the putative solid phase has a viscosity much larger than the liquid phase. The object of this paper is to examine in detail a simplified version of the governing equations for this phase-field model in...
متن کاملSharp-interface projection of a fluctuating phase-field model.
We present a derivation of the sharp-interface limit of a generic fluctuating phase-field model for solidification. As a main result, we obtain a sharp-interface projection which presents noise terms in both the diffusion equation and in the moving boundary conditions. The presented procedure does not rely on the fluctuation-dissipation theorem, and can therefore be applied to account for both ...
متن کاملPropagating phase interface with intermediate interfacial phase: phase field approach
An advanced three-phase phase fi eld approach (PFA) is suggested for a nonequilibrium phase interface that contains an intermediate phase, in particular, a solid-solid interface with a nanometer-sized intermediate melt (IM). A thermodynamic potential in the polar order parameters is developed that satisfi es all thermodynamic equilibrium and stability conditions. The special form of the gradien...
متن کاملPropagating phase interface with intermediate interfacial phase: Phase field approach
An advanced three-phase phase field approach (PFA) is suggested for a nonequilibrium phase interface that contains an intermediate phase, in particular, a solid-solid interface with a nanometer-sized intermediate melt (IM). A thermodynamic potential in the polar order parameters is developed that satisfies all thermodynamic equilibrium and stability conditions. The special form of the gradient ...
متن کاملConservative phase-field lattice Boltzmann model for interface tracking equation.
Based on the phase-field theory, we propose a conservative lattice Boltzmann method to track the interface between two different fluids. The presented model recovers the conservative phase-field equation and conserves mass locally and globally. Two entirely different approaches are used to calculate the gradient of the phase field, which is needed in computation of the normal to the interface. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Crystal Growth
سال: 2004
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2003.12.003