Numerical Simulation of Isothermal Dendritic Growth by Phase-field Model.
نویسندگان
چکیده
منابع مشابه
Numerical Simulation of Dendritic Solidi cation Using a Phase Field Model
Solidi cation of a pure material from its undercooled melt is considered, taking into account e ects of surface tension, kinetic undercooling and anisotropy. The resulting crystals exhibit complicated dendritic shapes. To avoid explicit tracking of the solid-liquid interfaces a phase eld model is employed. A di use interface of arti cial width is introduced and the solidi cation is modeled by a...
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Dendritic crystal growth in a pure undercooled melt is simulated quantitatively in three dimensions using a phase-field approach. The classic parameter s that characterizes the dynamically selected operating state of the dendrite tip as well as the full nonaxisymmetric tip morphology are determined as a function of anisotropy for a crystal with a cubic symmetry. Results are compared to experime...
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We consider the solidi cation of a pure material from its undercooled melt, taking into account e ects of surface tension, kinetic undercooling and crystalline anisotropy. The classical mathematical formulation consists of two heat equations coupled with boundary conditions prescribed at the moving solid-liquid interface. Analytic solutions are known only for a few special cases. Since the prob...
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The Rensselaer Isothermal Dendritic Growth Experiment (RIDGE) is a continuation of the Isolated Dendritic Growth Experiment (IDGE), which flew on three space flight experiments aboard the space shuttle Columbia. The RIDGE is an extension to the completed flight experiments by IDGE, to further investigate phenomenon uncovered in the analysis of data obtained by these earlier efforts. The first t...
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In this study, Allen-Cahn (AC) and Cahn-Hilliard (CH)-type diffuse-interface advection equations based on phase-field model (PFM) [1-5] are examined for computational fluid dynamics (CFD) simulation of motions of microscopic immiscible incompressible isothermal two-phase fluid contacting solid surface with heterogeneous wettability. For solving an AC equation revised in conservation form, a lat...
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ژورنال
عنوان ژورنال: ISIJ International
سال: 1999
ISSN: 0915-1559
DOI: 10.2355/isijinternational.39.246