Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak

Abstract

The first gyrokinetic simulations of plasma turbulence in the Texas Helimak device, a simple magnetized torus, are presented. The device has features similar to the scrape-off layer region of tokamaks, such as bad-curvature-driven instabilities and sheath boundary conditions on the end plates, which are included in these simulations. Comparisons between simulations and measurements from the experiment show similarities, including equilibrium profiles and fluctuation amplitudes that approach experimental values, but also some important quantitative differences. Both experimental and simulation results exhibit turbulence statistics that are characteristic of blob transport.

References in corpus (4)

• Gyrokinetic continuum simulation of turbulence in a straight open-field-line plasma
• Verification of BOUT++ by the Method of Manufactured Solutions
• A Gyrokinetic 1D Scrape-Off Layer Model of an ELM Heat Pulse
• Full-$f$ gyrokinetic simulation of turbulence in a helical open-field-line plasma

Cited by in corpus (8)

• Electromagnetic full-$f$ gyrokinetics in the tokamak edge with discontinuous Galerkin methods
• Conservative Discontinuous Galerkin Schemes for Nonlinear Fokker-Planck Collision Operators
• Conservative discontinuous Galerkin scheme of a gyro-averaged Dougherty collision operator
• Kinetic modeling of neutral transport for a continuum gyrokinetic code
• Local Gyrokinetic Collisional Theory of the Ion-Temperature Gradient Mode
• Fluid & Gyrokinetic turbulence in open field-line, helical plasmas
• Turbulent broadening of electron heat-flux width in electromagnetic gyrokinetic simulations of a helical scrape-off layer model
• Investigating shear flow through continuum gyrokinetic simulations of limiter biasing in the Texas Helimak