Global simulation of ion temperature gradient instabilities in a field-reversed configuration | Zendy

Jian Bao | Zendy; Calvin Lau | Zendy; Zhihong Lin | Zendy; Haochuan Wang | Zendy; Daniel Fulton | Zendy; Sean Dettrick | Zendy; T. Tajima | Zendy

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Global simulation of ion temperature gradient instabilities in a field-reversed configuration

Author(s) -

Jian Bao,

Calvin Lau,

Zhihong Lin,

Haochuan Wang,

Daniel Fulton,

Sean Dettrick,

T. Tajima

Publication year - 2019

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.5087079

Subject(s) - physics , curvature , plasma , temperature gradient , field reversed configuration , ion , instability , field (mathematics) , axial symmetry , separatrix , atomic physics , mechanics , tokamak , magnetic confinement fusion , meteorology , geometry , nuclear physics , mathematics , quantum mechanics , pure mathematics

We investigate the global properties of drift waves in the beam driven field-reversed configuration (FRC), the C2-U device, in which the central FRC and its scrape-off layer (SOL) plasma are connected with the formation sections and divertors. The ion temperature gradient modes are globally connected and unstable across these regions, while they are linearly stable inside the FRC separatrix. The unstable global drift waves in the SOL show an axially varying structure that is less intense near the central FRC region and the mirror throat areas, while being more robust in the bad curvature formation exit areas.We investigate the global properties of drift waves in the beam driven field-reversed configuration (FRC), the C2-U device, in which the central FRC and its scrape-off layer (SOL) plasma are connected with the formation sections and divertors. The ion temperature gradient modes are globally connected and unstable across these regions, while they are linearly stable inside the FRC separatrix. The unstable global drift waves in the SOL show an axially varying structure that is less intense near the central FRC region and the mirror throat areas, while being more robust in the bad curvature formation exit areas.

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