HEXAGONAL AND SPIRAL PATTERNS OF THERMAL-CONVECTION

被引：37

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.

引用

页码：48 / 52

页数：5

共 27 条

[1] EVOLUTION OF TURBULENCE FROM RAYLEIGH-BENARD INSTABILITY
AHLERS, G
BEHRINGER, RP
[J]. PHYSICAL REVIEW LETTERS, 1978, 40 (11) : 712 - 716
[2] TRANSIENT PATTERNS OF THE CONVECTION INSTABILITY - A MODEL-CALCULATION
BESTEHORN, M
HAKEN, H
[J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1984, 57 (04): : 329 - 333
[3] SPIRAL PATTERNS IN THERMAL-CONVECTION
BESTEHORN, M
FANTZ, M
FRIEDRICH, R
HAKEN, H
PEREZGARCIA, C
[J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1992, 88 (01): : 93 - 94
[4] A CALCULATION OF TRANSIENT SOLUTIONS DESCRIBING ROLL AND HEXAGON FORMATION IN THE CONVECTION INSTABILITY
BESTEHORN, M
HAKEN, H
[J]. PHYSICS LETTERS A, 1983, 99 (6-7) : 265 - 267
[5] TRAVELING WAVES AND PULSES IN A 2-DIMENSIONAL LARGE-ASPECT-RATIO SYSTEM
BESTEHORN, M
HAKEN, H
[J]. PHYSICAL REVIEW A, 1990, 42 (12): : 7195 - 7203
[6] BESTEHORN M, 1992, MAR INT C NONL PROBL
[7] BESTEHORN M, 1993, PHYSICA D, V61, P67
[8] EXPERIMENTS ON 3 SYSTEMS WITH NONVARIATIONAL ASPECTS
BODENSCHATZ, E
CANNELL, DS
DEBRUYN, JR
ECKE, R
HU, YC
LERMAN, K
AHLERS, G
[J]. PHYSICA D-NONLINEAR PHENOMENA, 1992, 61 (1-4) : 77 - 93
[9] STABILITY OF FINITE AMPLITUDE CELLULAR CONVECTION AND ITS RELATION TO AN EXTREMUM PRINCIPLE
BUSSE, FH
[J]. JOURNAL OF FLUID MECHANICS, 1967, 30 : 625 - &
[10] RAYLEIGH-BENARD CONVECTIVE STRUCTURES IN A CYLINDRICAL CONTAINER
CROQUETTE, V
MORY, M
SCHOSSELER, F
[J]. JOURNAL DE PHYSIQUE, 1983, 44 (03): : 293 - 301

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