BIRTH, DEATH, STEP SIZE, AND THE SHAPE OF DLA

被引：11

作者：

Voss, Richard F. ^{[1
]}

机构：

[1] IBM Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY | 1993年 / 1卷 / 02期

关键词：

D O I：

10.1142/S0218348X93000162

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

New large-scale off-lattice simulations of 2d diffusion-limited aggregation (DLA) show a richness of cluster morphology approaching electrochemical, fluid, and dielectric experimental systems. Contrary to common belief, the birth, death, and step size of the random walkers are critical in determining asymptotic cluster shape. Numerical instabilities mimic dense radial growth experiments with outer tip suppression, while enhancement produces single arm dominance.

引用

页码：141 / 147

页数：7

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