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Global gyrokinetic simulations of the H-mode tokamak edge pedestala)
a)Paper YI3 6, Bull. Am. Phys. Soc. , 372 (2012).
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10.1063/1.4803890
/content/aip/journal/pop/20/5/10.1063/1.4803890
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/5/10.1063/1.4803890
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The equilibrium parallel current (a) and its derivative (b) used in simulation.

Image of FIG. 2.
FIG. 2.

The linear growth rate γ (a) and real frequency (b) for . Solid line: results with the parallel current; dashed line: without the parallel current.

Image of FIG. 3.
FIG. 3.

The poloidal cross sections of the linear mode structure for  = 6 (left panel) and  = 36 (right panel).

Image of FIG. 4.
FIG. 4.

The (a) linear growth rate and (b) real frequency of the KPBM of  = 12 with changing half width of one of the three profiles: density, ion temperature, and electron temperature—while keeping the other two profiles fixed. is the factor used to multiply the profile width.

Image of FIG. 5.
FIG. 5.

Similar to Fig. 4 but for the high- mode,  = 54.

Image of FIG. 6.
FIG. 6.

Half width scan for (a) discharge 132016,  = 36, and (b) discharge 136051,  = 63. Collisions are not included in (a) for cleaner trends.

Image of FIG. 7.
FIG. 7.

The experimental radial electric field (solid line) compared to (dashed line).

Image of FIG. 8.
FIG. 8.

The nonlinear evolution of volume-averaged particle flux. (a) Simulation with the intermediate- KPBM included; (b) simulations with high- ( ) modes only. Solid lines are results with and dashed lines are without .

Image of FIG. 9.
FIG. 9.

The nonlinear turbulence structure. The electrostatic potential for the simulations with (a) the KPBM and (b) high- only. is included in these runs.

Image of FIG. 10.
FIG. 10.

The particle diffusion coefficient across the pedestal for the four nonlinear simulations of Fig. 8 . Quantities are time-averaged over the nonlinear saturation stage.

Image of FIG. 11.
FIG. 11.

The ion and electron heat flux diffusivities and for the four simulations. Quantities are time-averaged over the nonlinear saturation stage.

Image of FIG. 12.
FIG. 12.

A diagram of the KPBM and the KBM.

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/content/aip/journal/pop/20/5/10.1063/1.4803890
2013-05-06
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Global gyrokinetic simulations of the H-mode tokamak edge pedestala)
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/5/10.1063/1.4803890
10.1063/1.4803890
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