Intrinsic Rotation Driven by Non-Maxwellian Equilibria in Tokamak Plasmas
- Authors
- Barnes, Michael A.; Parra, Félix I.; Lee, jungpyo; Belli, Emily A.; Nave, Maria Filomena F.; White, Anne E.
- Issue Date
- Aug-2013
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.111, no.5, pp.55005 - 55009
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 111
- Number
- 5
- Start Page
- 55005
- End Page
- 55009
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/162134
- DOI
- 10.1103/PhysRevLett.111.055005
- ISSN
- 0031-9007
- Abstract
- The effect of small deviations from a Maxwellian equilibrium on turbulent momentum transport in tokamak plasmas is considered. These non-Maxwellian features, arising from diamagnetic effects, introduce a strong dependence of the radial flux of cocurrent toroidal angular momentum on collisionality: As the plasma goes from nearly collisionless to weakly collisional, the flux reverses direction from radially inward to outward. This indicates a collisionality-dependent transition from peaked to hollow rotation profiles, consistent with experimental observations of intrinsic rotation.
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