scholarly journals Magnetic shear effect on zonal flow generation in ion-temperature-gradient mode turbulence

2011 ◽  
Vol 60 (8) ◽  
pp. 085202
Author(s):  
Lu He-Lin ◽  
Chen Zhong-Yong ◽  
Li Yue-Xun ◽  
Yang Kai
Keyword(s):  
Temperature Gradient ◽  
Zonal Flow ◽  
Shear Effect ◽  
Ion Temperature ◽  
Magnetic Shear ◽  
Ion Temperature Gradient ◽  
Flow Generation ◽  
Gradient Mode

scholarly journals Zonal flow generation in ion temperature gradient mode turbulence

2002 ◽  
Vol 9 (11) ◽  
pp. 4500-4506 ◽  
Author(s):  
J. Anderson ◽  
H. Nordman ◽  
R. Singh ◽  
J. Weiland
Keyword(s):  
Temperature Gradient ◽  
Zonal Flow ◽  
Ion Temperature ◽  
Ion Temperature Gradient ◽  
Flow Generation ◽  
Gradient Mode

scholarly journals Secondary instability of electromagnetic ion-temperature-gradient modes for zonal flow generation

2011 ◽  
Vol 18 (7) ◽  
pp. 072306 ◽  
Author(s):  
Johan Anderson ◽  
Hans Nordman ◽  
Rameswar Singh ◽  
Raghvendra Singh
Keyword(s):  
Temperature Gradient ◽  
Zonal Flow ◽  
Secondary Instability ◽  
Ion Temperature ◽  
Ion Temperature Gradient ◽  
Flow Generation

Magnetic-island-induced ion temperature gradient mode: Landau damping, equilibrium magnetic shear and pressure flattening effects

2018 ◽  
Vol 20 (7) ◽  
pp. 075101 ◽  
Author(s):  
Wei WANG ◽  
Zhengxiong WANG ◽  
Jiquan LI ◽  
Yasuaki KISHIMOTO ◽  
Jiaqi DONG ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Landau Damping ◽  
Ion Temperature ◽  
Magnetic Island ◽  
Magnetic Shear ◽  
Ion Temperature Gradient ◽  
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.

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