4.5 Article

Sources of intrinsic rotation in the low-flow ordering

Journal

NUCLEAR FUSION
Volume 51, Issue 11, Pages -

Publisher

INT ATOMIC ENERGY AGENCY
DOI: 10.1088/0029-5515/51/11/113001

Keywords

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Funding

  1. UK EPSRC
  2. Christ Church at University of Oxford
  3. US Department of Energy at the Plasma Science and Fusion Center of the Massachusetts Institute of Technology [DE-FG02-91ER-54109]
  4. Center for Multiscale Plasma Dynamics of University of Maryland
  5. Leverhulme network for Magnetised Turbulence in Astrophysical and Fusion Plasmas
  6. EPSRC [EP/G049718/1, EP/I501045/1] Funding Source: UKRI
  7. Engineering and Physical Sciences Research Council [EP/I501045/1, EP/G049718/1] Funding Source: researchfish

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A low flow, delta f gyrokinetic formulation to obtain the intrinsic rotation profiles is presented. The momentum conservation equation in the low-flow ordering contains new terms, neglected in previous first-principles formulations, that may explain the intrinsic rotation observed in tokamaks in the absence of external sources of momentum. The intrinsic rotation profile depends on the density and temperature profiles and on the up-down asymmetry.

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