Gyrokinetic Particle Simulation of Kinetic Alfvén Wave Turbulence

Details Gyrokinetic Particle Simulation of Kinetic Alfvén Wave Turbulence Gyrokinetic Particle Simulation of Kinetic Alfvén Wave Turbulence

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh53b2046l&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH53B-2046

Physics

Plasma Physics

[2159] Interplanetary Physics / Plasma Waves And Turbulence, [7839] Space Plasma Physics / Nonlinear Phenomena

Scientific paper

The previous studies of spectral cascade in Alfvénic turbulence clearly show signs of plasma heating, and there are several highly-debated explanations to this phenomenon. We have developed a nonlinear gyrokinetic particle simulation to study the perpendicular spectral cascade caused by Landau damping of kinetic Alfvén wave, which is one of those possible heating mechanisms. The nonlinear gyrokinetic code includes scalar potential, vector potential, and compressional magnetic perturbation to form a complete, self-consistent nonlinear simulation. We will discuss the simulation results in comparison with earlier simulation without the compressional magnetic perturbation.

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