HEXAGONAL AND SPIRAL PATTERNS OF THERMAL-CONVECTION

被引：38

作者：

BESTEHORN, M

FANTZ, M

FRIEDRICH, R

HAKEN, H

机构：

[1] Institut für Theoretische Physik und Synergetik, Universität Stuttgart, W-7000 Stuttgart 80

来源：

PHYSICS LETTERS A | 1993年 / 174卷 / 1-2期

关键词：

D O I：

10.1016/0375-9601(93)90540-G

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using an extension of the Swift-Hohenberg equation including mean flow effects we show numerically that the mean flow accounts for the deformation of straight convection rolls to spirals in the case of a Boussinesq flow. Including also non-Boussinesqian effects we obtain transitions between spirals and hexagons. The results are in qualitative agreement with recent experiments in compressed gases.

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收藏

页码：48 / 52

页数：5

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