Stabilization of ion temperature gradient mode by small-scale zonal flows

2003 ◽  
Vol 10 (3) ◽  
pp. 683-688 ◽  
Author(s):  
Jiquan Li ◽  
Y. Kishimoto
Keyword(s):  
Temperature Gradient ◽  
Small Scale ◽  
Ion Temperature ◽  
Ion Temperature Gradient ◽  
Zonal Flows ◽  
Gradient Mode

Zonal flow in toroidal ion temperature gradient mode turbulence

2007 ◽  
Vol 73 (4) ◽  
pp. 565-573 ◽  
Author(s):  
INGMAR SANDBERG ◽  
V. P. PAVLENKO
Keyword(s):  
Temperature Gradient ◽  
Nonlinear Evolution ◽  
Zonal Flow ◽  
Shear Layers ◽  
Ion Temperature ◽  
Ion Temperature Gradient ◽  
Zonal Flows ◽  
Characteristic Oscillation ◽  
The Stability ◽  
Gradient Mode

AbstractThe properties of zonal flows in the toroidal ion temperature gradient mode turbulence are investigated taking into account the polarization drift effects. The stability criterion and the characteristic oscillation frequency of the zonal flow are determined in terms of the spectra of turbulent fluctuations. The nonlinear evolution of zonal flows may lead to the formation of stationary long-lived coherent structures supporting stationary shear layers. These results indicate the existence of regions with reduced levels of anomalous transport attributed to zonal flows generalizing previous findings regarding zonal flows in electron drift turbulence.

Gyrokinetic theory of slab ion temperature gradient mode in negative shear tokamaks

1999 ◽  
Vol 6 (12) ◽  
pp. 4658-4671 ◽  
Author(s):  
Y. Idomura ◽  
S. Tokuda ◽  
M. Wakatani
Keyword(s):  
Temperature Gradient ◽  
Ion Temperature ◽  
Ion Temperature Gradient ◽  
Gradient Mode

scholarly journals Initial Value Problem of the Toroidal Ion Temperature Gradient Mode

1998 ◽  
Vol 67 (11) ◽  
pp. 3787-3787 ◽  
Author(s):  
Tohru Kuroda ◽  
Hideo Sugama ◽  
Ryutaro Kanno ◽  
Masao Okamoto ◽  
Wendell Horton
Keyword(s):  
Temperature Gradient ◽  
Initial Value Problem ◽  
Ion Temperature ◽  
Initial Value ◽  
Ion Temperature Gradient ◽  
Gradient Mode

Zonal flows and transport in ion temperature gradient turbulence

2002 ◽  
Vol 9 (12) ◽  
pp. 4911-4916 ◽  
Author(s):  
Sheikh Dastgeer ◽  
Sangeeta Mahajan ◽  
Jan Weiland
Keyword(s):  
Temperature Gradient ◽  
Ion Temperature ◽  
Ion Temperature Gradient ◽  
Zonal Flows

scholarly journals The two-dimensional kinetic ballooning theory for ion temperature gradient mode in tokamak

2017 ◽  
Vol 24 (10) ◽  
pp. 102506 ◽  
Author(s):  
T. Xie ◽  
Y. Z. Zhang ◽  
S. M. Mahajan ◽  
S. L. Hu ◽  
Hongda He ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Two Dimensional ◽  
Ion Temperature ◽  
Ion Temperature Gradient ◽  
Gradient Mode
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