Anisotropic phase-field model: interfaces and junctions
Nestler, B. and Wheeler, A.A. (1998) Anisotropic phase-field model: interfaces and junctions. Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 57, (3A), 2602-2609. (doi:10.1103/PhysRevE.57.2602).
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n this paper we bring together and extend two recent developments in phase-field models, namely, a phase-field model of a multiphase system [I. Steinbach et al., Physica D 94, 135 (1996)] and the extension of the Cahn-Hoffman ξ-vector theory of anisotropic sharp interfaces to phase-field models [A. A. Wheeler and G. B. McFadden, Eur. J. Appl. Math. 7, 369 (1996); Proc. R. Soc. London, Ser. A 453, 1611 (1997)]. We develop the phase-field model of a multiphase system proposed by Steinbach et al. to include both surface energy and interfacial kinetic anisotropy. We show that this model may be compactly expressed in terms of generalized Cahn-Hoffman ξ vectors. This generalized Cahn-Hoffman ξ-vector formalism is subsequently developed to include the notion of a stress tensor, which is used to succinctly derive the leading-order conditions at both moving interfaces and stationary multijunctions in the sharp interface limit.
|Subjects:||Q Science > QA Mathematics|
|Divisions:||University Structure - Pre August 2011 > School of Mathematics > Applied Mathematics
|Date Deposited:||09 Jan 2007|
|Last Modified:||01 Jun 2011 14:10|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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