Nonlinear damping of zonal flows

被引：2

作者：

Koshkarov, O. ^{[1
]}

Smolyakov, A. I. ^{[1
,2
]}

Mendonca, J. T. ^{[3
]}

机构：

[1] Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7N 5E2, Canada

[2] Natl Res Ctr Kurchatov Inst, Pl Akad Kurchatova 1, Moscow 123182, Russia

[3] Inst Super Tecn, Inst Plasmas & Fusao Nucl, P-1049001 Lisbon, Portugal

来源：

PLASMA PHYSICS REPORTS | 2016年 / 42卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

DRIFT WAVES; TURBULENCE; GENERATION; PLASMAS; INSTABILITY; EXCITATION; SHEAR;

D O I：

10.1134/S1063780X16080067

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The modulatonal instability theory for the generation of large-scale (zonal) modes by drift modes has been extended to the second order including the effects of finite amplitude zonal flows, I center dot (q) . The nonlinear (second-order) sidebands are included in the perturbative expansion to derive the nonlinear equation for the evolution of I center dot (q) . It is shown that effects of finite I center dot (q) reduce the growth rate of zonal flow with a possibility of oscillatory regimes at a later stage.

引用

页码：769 / 772

页数：4

共 17 条

[1] Quasilinear analysis of the zonal flow back-reaction on ion-temperature-gradient mode turbulence [J].

Anderson, Johan ;

Li, Jiquan ;

Kishimoto, Yasuaki ;

Kim, Eun-jin .

PHYSICS LETTERS A, 2008, 372 (38) :5987-5990

[2] Effects of ExB velocity shear and magnetic shear on turbulence and transport in magnetic confinement devices [J].

Burrell, KH .

PHYSICS OF PLASMAS, 1997, 4 (05) :1499-1518

[3] Excitation of zonal flow by drift waves in toroidal plasmas [J].

Chen, L ;

Lin, ZH ;

White, R .

PHYSICS OF PLASMAS, 2000, 7 (08) :3129-3132

[4] Modulational instability of Rossby and drift waves and generation of zonal jets [J].

Connaughton, Colm P. ;

Nadiga, Balasubramanya T. ;

Nazarenko, Sergey V. ;

Quinn, Brenda E. .

JOURNAL OF FLUID MECHANICS, 2010, 654 :207-231

[5] Zonal flows in plasma - a review [J].

Diamond, PH ;

Itoh, SI ;

Itoh, K ;

Hahm, TS .

PLASMA PHYSICS AND CONTROLLED FUSION, 2005, 47 (05) :R35-R161

[6] The modulational instability in the extended Hasegawa-Mima equation with a finite Larmor radius [J].

Gallagher, S. ;

Hnat, B. ;

Connaughton, C. ;

Nazarenko, S. ;

Rowlands, G. .

PHYSICS OF PLASMAS, 2012, 19 (12)

[7] Shear flow generation by drift waves revisited [J].

Guzdar, PN ;

Kleva, RG ;

Chen, L .

PHYSICS OF PLASMAS, 2001, 8 (02) :459-462

[8] PSEUDO-3-DIMENSIONAL TURBULENCE IN MAGNETIZED NONUNIFORM PLASMA [J].

HASEGAWA, A ;

MIMA, K .

PHYSICS OF FLUIDS, 1978, 21 (01) :87-92

[9] Physics of zonal flows [J].

Itoh, K. ;

Itoh, S. -I. ;

Diamond, P. H. ;

Hahm, T. S. ;

Fujisawa, A. ;

Tynan, G. R. ;

Yagi, M. ;

Nagashima, Y. .

PHYSICS OF PLASMAS, 2006, 13 (05)

[10]

Landau L. D., 1986, FLUID MECH

← 1 2 →