Temporally harmonic oscillons in Newtonian fluids

被引：78

作者：

Arbell, H ^{[1
]}

Fineberg, J ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.85.756

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Stationary, highly localized (oscillon) structures are observed in a Newtonian fluid when nonlinear surface waves are parametrically excited with two frequencies. Oscillons have a characteristic structure, that of periodically self-focusing jets. In contrast to previously observed oscillons in highly nonNewtonian media, these states are temporally harmonic with the forcing. For wave amplitudes greater than a critical value, they nucleate from an initial pattern via a hysteretic bifurcation, and can therefore be localized on a background of patterns with a variety of different spatial symmetries.

引用

页码：756 / 759

页数：4

共 23 条

[1] Two-mode rhomboidal states in driven surface waves
Arbell, H
Fineberg, J
[J]. PHYSICAL REVIEW LETTERS, 2000, 84 (04) : 654 - 657
[2] Spatial and temporal dynamics of two interacting modes in parametrically driven surface waves
Arbell, H
Fineberg, J
[J]. PHYSICAL REVIEW LETTERS, 1998, 81 (20) : 4384 - 4387
[3] AN EXACT SOLUTION FOR PROGRESSIVE CAPILLARY WAVES OF ARBITRARY AMPLITUDE
CRAPPER, GD
[J]. JOURNAL OF FLUID MECHANICS, 1957, 2 (06) : 532 - 540
[4] Oscillon-type structures and their interaction in a Swift-Hohenberg model
Crawford, C
Riecke, H
[J]. PHYSICA D-NONLINEAR PHENOMENA, 1999, 129 (1-2) : 83 - 92
[5] Spatiotemporal chaos in electroconvection
Dennin, M
Ahlers, G
Cannell, DS
[J]. SCIENCE, 1996, 272 (5260) : 388 - 390
[6] EDWARDS WS, 1993, PHYS REV E, V47, P1623
[7] FAUVE S, 1998, HYDRODYNAMICS NONLIN
[8] Viscous effects in droplet-ejecting capillary waves
Goodridge, CL
Shi, WT
Hentschel, HGE
Lathrop, DP
[J]. PHYSICAL REVIEW E, 1997, 56 (01): : 472 - 475
[9] TRAVELING WAVES AND SPATIAL VARIATION IN THE CONVECTION OF A BINARY MIXTURE
HEINRICHS, R
AHLERS, G
CANNELL, DS
[J]. PHYSICAL REVIEW A, 1987, 35 (06): : 2761 - 2764
[10] Superlattice patterns in surface waves
Kudrolli, A
Pier, B
Gollub, JP
[J]. PHYSICA D, 1998, 123 (1-4): : 99 - 111

← 1 2 3 →