Poloidal rotation and its relation to the potential vorticity flux
- Center for Astrophysics and Space Sciences, University of California at San Diego, La Jolla, California 92093-0424 (United States)
- Laboratoire de Physique des Plasmas, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex (France)
- Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543-0451 (United States)
A kinetic generalization of a Taylor identity appropriate to a strongly magnetized plasma is derived. This relation provides an explicit link between the radial mixing of a four-dimensional (4D) gyrocenter fluid and the poloidal Reynolds stress. This kinetic analog of a Taylor identity is subsequently utilized to link the turbulent transport of poloidal momentum to the mixing of potential vorticity. A quasilinear calculation of the flux of potential vorticity is carried out, yielding diffusive, turbulent equipartition, and thermoelectric convective components. Self-consistency is enforced via the quasineutrality relation, revealing that for the case of a stationary small amplitude wave population, deviations from neoclassical predictions of poloidal rotation can be closely linked to the growth/damping profiles of the underlying drift wave microturbulence.
- OSTI ID:
- 21531985
- Journal Information:
- Physics of Plasmas, Vol. 17, Issue 11; Other Information: DOI: 10.1063/1.3490253; (c) 2010 American Institute of Physics; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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