FRACTAL DYNAMICS OF BIOCONVECTIVE PATTERNS

被引：3

作者：

NOEVER, DA

机构：

[1] Biophysics Branch, ES-76, NASA Marshall Space Flight Center, Huntsville

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1991年 / 60卷 / 10期

关键词：

D O I：

10.1143/JPSJ.60.3573

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Biologically generated cellular patterns, sometimes called bioconvective patterns, are found to cluster into aggregates which follow fractal growth dynamics akin to diffusion-limited aggregation (DLA) models. The pattern formed is self-similar with fractal dimension of 1.66 +/- 0.038. Bioconvective DLA branching results from thermal roughening which shifts the balance between ordering viscous forces and disordering cell motility and random diffusion. The phase diagram for pattern morphology includes DLA, boundary spokes, random clusters and reverse clusters.

引用

页码：3573 / 3578

页数：6

共 23 条

[1]

Ball R. C., 1986, On Growth and Form - Fractal and Non-Fractal Patterns in Physics. Proceedings of the NATO Advanced Study Institute, P69

[2]

Beysens D., 1986, On Growth and Form - Fractal and Non-Fractal Patterns in Physics. Proceedings of the NATO Advanced Study Institute, P211

[3]

CHEN JD, 1989, J FLUID MECH, V201, P232

[4] CHEMICAL DISSOLUTION OF A POROUS-MEDIUM BY A REACTIVE FLUID [J].