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Plasma elongation effect on the parity change in global electromagnetic ion temperature gradient modes and intrinsic rotation generation.
- Source :
-
Physics of Plasmas . Jan2023, Vol. 30 Issue 1, p1-5. 5p. - Publication Year :
- 2023
-
Abstract
- A study is made of the effect of plasma elongation (κ) on parity of a global electromagnetic (EM) ion temperature gradient mode and intrinsic rotation generation. An odd parity component of the mode is generated by global EM effects and increases with β (=plasma thermal energy/magnetic energy), enhancing the symmetry breaking and subsequent Reynolds stress [Kaang et al., Phys. Plasmas 25, 012505 (2018)]. The plasma elongation is shown to diminish the parity change via the reduction in the effective ion temperature gradient by a factor α = 1 − E ′ , where E = r (κ − 1) / (κ + 1). A quasi-linear analysis indicates that plasma elongation can weaken the generation of intrinsic torque induced by the global EM effect as a result of the decline of the parity change. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1070664X
- Volume :
- 30
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Physics of Plasmas
- Publication Type :
- Academic Journal
- Accession number :
- 161626711
- Full Text :
- https://doi.org/10.1063/5.0134054