Gyrokinetics Simulation of Energetic Particle Turbulence and Transport | Zendy

P. H. Diamond | Zendy

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Gyrokinetics Simulation of Energetic Particle Turbulence and Transport

Author(s) -

P. H. Diamond

Publication year - 2011

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/1024908

Subject(s) - precession , turbulence , physics , phase space , resonance (particle physics) , nonlinear system , particle (ecology) , momentum (technical analysis) , particle flow , scattering , classical mechanics , mechanics , phase (matter) , computational physics , plasma , nuclear physics , atomic physics , quantum mechanics , geology , oceanography , finance , economics

Progress in research during this year elucidated the physics of precession resonance and its interaction with radial scattering to form phase space density granulations. Momentum theorems for drift wave-zonal flow systems involving precession resonance were derived. These are directly generalizable to energetic particle modes. A novel nonlinear, subcritical growth mechanism was identified, which has now been verified by simulation. These results strengthen the foundation of our understanding of transport in burning plasma

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