Long-wavelength modulation of turbulent shear flows

被引：103

作者：

Prigent, A ^{[1
]}

Grégoire, G ^{[1
]}

Chaté, H ^{[1
]}

Dauchot, O ^{[1
]}

机构：

[1] CENS, CEA, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

来源：

PHYSICA D-NONLINEAR PHENOMENA | 2003年 / 174卷 / 1-4期

关键词：

wavelength modulation; turbulent shear flows; Taylor-Couette experiments; turbulent flow bifurcation;

D O I：

10.1016/S0167-2789(02)00685-1

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The reverse transition from turbulent to laminar flow is studied in very large aspect ratio plane Couette and Taylor-Couette experiments. We show that laminar-turbulence coexistence dynamics (turbulent spots, spiral turbulence, etc.) can be seen as the ultimate stage of a modulation of the turbulent flows present at higher Reynolds number leading to regular, long-wavelength, inclined stripes. This new type of instability, whose originality is to arise within a macroscopically fluctuating state, can be described in the framework of Ginzburg-Landau equations to which noise is heuristically added to take into account the intrinsic fluctuations of the basic state. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：100 / 113

页数：14

共 12 条

[1] FLOW REGIMES IN A CIRCULAR COUETTE SYSTEM WITH INDEPENDENTLY ROTATING CYLINDERS [J].

ANDERECK, CD ;

LIU, SS ;

SWINNEY, HL .

JOURNAL OF FLUID MECHANICS, 1986, 164 :155-183

[2] Statistical analysis of the transition to turbulence in plane Couette flow [J].

Bottin, S ;

Chate, H .

EUROPEAN PHYSICAL JOURNAL B, 1998, 6 (01) :143-155

[3] TRANSITION IN CIRCULAR COUETTE FLOW [J].

COLES, D .

JOURNAL OF FLUID MECHANICS, 1965, 21 :385-&

[4]

COLES D, 1967, PHYS FLUIDS S, pS120

[5] NONLINEAR-WAVES OF THE OSCILLATORY INSTABILITY ON FINITE CONVECTIVE ROLLS [J].

CROQUETTE, V ;

WILLIAMS, H .

PHYSICA D, 1989, 37 (1-3) :300-314

[6] FINITE-AMPLITUDE PERTURBATION AND SPOTS GROWTH-MECHANISM IN PLANE COUETTE-FLOW [J].

DAUCHOT, O ;

DAVIAUD, F .

PHYSICS OF FLUIDS, 1995, 7 (02) :335-343

[7] SUBCRITICAL TRANSITION TO TURBULENCE IN PLANE COUETTE-FLOW [J].

DAVIAUD, F ;

HEGSETH, J ;

BERGE, P .

PHYSICAL REVIEW LETTERS, 1992, 69 (17) :2511-2514

[8]

POMEAU Y, 1986, PHYSICA D, V23, P1

[9] Visualization of a Taylor-Couette flow avoiding parasitic reflections [J].

Prigent, A ;

Dauchot, O .

PHYSICS OF FLUIDS, 2000, 12 (10) :2688-2690

[10] Deviations from linear theory for fluctuations below the supercritical primary bifurcation to electroconvection [J].

Scherer, MA ;

Ahlers, G ;

Hörner, F ;

Rehberg, I .

PHYSICAL REVIEW LETTERS, 2000, 85 (18) :3754-3757

← 1 2 →