Electromagnetic zonal flow residual responses

Catto, Peter J.; Parra, Felix I.; Pusztai, István

doi:10.1017/s0022377817000472

Electromagnetic zonal flow residual responses

Journal Article · Mon Jul 03 00:00:00 EDT 2017 · Journal of Plasma Physics

DOI:https://doi.org/10.1017/s0022377817000472· OSTI ID:1534400

Catto, Peter J. ^[1]; Parra, Felix I. ^[2]; Pusztai, István ^[3]

Massachusetts Institute of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center; OSTI
University of Oxford (United Kingdom); Culham Science Centre, Abingdon (United Kingdom)
Chalmers University of Technology, Gothenburg (Sweden)

We report the collisionless axisymmetric zonal flow residual calculation for a tokamak plasma is generalized to include electromagnetic perturbations. We formulate and solve the complete initial value zonal flow problem by retaining the fully self-consistent axisymmetric spatial perturbations in the electric and magnetic fields. Simple expressions for the electrostatic, shear and compressional magnetic residual responses are derived that provide a fully electromagnetic test of the zonal flow residual in gyrokinetic codes. Unlike the electrostatic potential, the parallel vector potential and the parallel magnetic field perturbations need not relax to flux functions for all possible initial conditions.

View Accepted Manuscript (DOE)

Research Organization:: Massachusetts Institute of Technology (MIT), Cambridge, MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); International Career Grant; Marie Sklodowska Curie Actions

Grant/Contract Number:: FG02-91ER54109

OSTI ID:: 1534400

Report Number(s):: PSFC/JA-17-13; PII: S0022377817000472

Journal Information:: Journal of Plasma Physics, Journal Name: Journal of Plasma Physics Journal Issue: 4 Vol. 83; ISSN 0022-3778

Publisher:: Cambridge University PressCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (1)

Non-isomorphic radial wavenumber dependencies of residual zonal flows in ion and electron Larmor radius scales, and effects of initial parallel flow and electromagnetic potentials in a circular tokamak Yamagishi, Osamu Plasma Physics and Controlled Fusion, Vol. 60, Issue 4 https://doi.org/10.1088/1361-6587/aaaefb	journal	March 2018

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