• Corpus ID: 16097827

Simulating Plasma Turbulence in Tokamaks

@article{Kepner1997SimulatingPT,
  title={Simulating Plasma Turbulence in Tokamaks},
  author={Jeremy Kepner and Scott E. Parker and Viktor K. Decyk},
  journal={arXiv: Plasma Physics},
  year={1997}
}
A challenging and fundamental research problem is the better understanding and control of the turbulent transport of heat in present-day tokamak fusion experiments. Recent developments in numerical methods along with enormous gains in computing power have made large-scale simulations an important tool for improving our understanding of this phenomena. Simulating this highly non-linear behavior requires solving for the perturbations of the phase space distribution function in five dimensions. We… 

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References

SHOWING 1-10 OF 11 REFERENCES
Gyrokinetic Particle Simulation Model
Radially global gyrokinetic simulation studies of transport barriers
Improvements in tokamak transport have recently been obtained in a variety of operational modes through the formation of transport barriers, or good confinement radial zones. Here global nonlinear
A fully nonlinear characteristic method for gyrokinetic simulation
A new scheme that evolves the perturbed part of the distribution function along a set of characteristics that solves the fully nonlinear gyrokinetic equations is presented. This low‐noise nonlinear
A general concurrent algorithm for plasma particle-in-cell simulation codes
Gyrokinetic simulation of ion temperature gradient driven turbulence in 3D toroidal geometry.
TLDR
Results from a fully nonlinear three dimensional toroidal electrostatic gyrokinetic simulation of the ion temperature gradient instability are presented, where a coherent ballooning eigenmode is observed and the mode is radially elongated.
Nonlinear gyrokinetic equations for tokamak microturbulence
A nonlinear electrostatic gyrokinetic Vlasov equation as well as a Poisson equation have been derived in a form suitable for particle simulation studies of tokamak microturbulence and associated
Improved plasma performance in tokamaks with negative magnetic shear.
A tokamak plasma configuration is reported that simultaneously improves on the maximum stable plasma pressure, the bootstrap current contribution, and kinetic stability to temperature and density
Nonlinear gyrokinetic equations for low-frequency electromagnetic waves in general plasma equilibria
A nonlinear gyrokinetic formalism for low‐frequency (less than the cyclotron frequency) microscopic electromagnetic perturbations in general magnetic field configurations is developed. The nonlinear
Skeleton PIC Codes for Parallel Computers
How to Write (Nearly) Portarle Fortran Programs for Parallel Computers
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