Plasma equilibrium with fast ion orbit width, pressure anisotropy, and toroidal flow effects

Gorelenkov, Nikolai N.; Zakharov, Leonid E.

doi:10.1088/1741-4326/aac09d

Title: Plasma equilibrium with fast ion orbit width, pressure anisotropy, and toroidal flow effects

Journal Article · 27 April 2018 · Nuclear Fusion

DOI: https://doi.org/10.1088/1741-4326/aac09d · OSTI ID:1436755

Gorelenkov, Nikolai N. ^[1]; Zakharov, Leonid E. ^[2]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Princeton Univ., Princeton, NJ (United States)

Here, we formulate the problem of tokamak plasma equilibrium including the toroidal flow and fast ion (or energetic particle, EP) pressure anisotropy and the finite drift orbit width (FOW) effects. The problem is formulated via the standard Grad-Shafranov equation (GShE) amended by the solvability condition which imposes physical constraints on allowed spacial dependencies of the anisotropic pressure. The GShE problem employs the pressure coupling scheme and includes the dominant diagonal terms and non-diagonal corrections to the standard pressure tensor. The anisotropic tensor elements are obtained via the distribution function represented in the factorized form via the constants of motion. Considered effects on the plasma equilibrium are estimated analytically, if possible, to understand their importance for GShE tokamak plasma problem.

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1436755

Journal Information:: Nuclear Fusion, Vol. 58, Issue 8; ISSN 0029-5515

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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