NUMERICAL STUDY OF A MORPHOLOGY DIAGRAM IN THE LARGE UNDERCOOLING LIMIT USING A PHASE-FIELD MODEL

被引：31

作者：

KUPFERMAN, R

SHOCHET, O

BENJACOB, E

机构：

[1] School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University

来源：

PHYSICAL REVIEW E | 1994年 / 50卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.50.1005

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We present a numerical study of asymptotic late-stage growth in a phase-field model. After a long transient time the patterns are independent of initial conditions, and have a well-defined shape-preserving envelope which propagates at constant velocity. To distinguish between implicit and explicit anisotropies, a model with explicit fourfold anisotropy is solved on a triangular lattice. Distinct morphologies are observed, characterized by the envelope shape and by their constituent growth elements (dendrites, parity-broken dendrites, or tip-splitting fingers).

引用

页码：1005 / 1008

页数：4

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