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Electromagnetic zonal flow residual responses

Abstract:
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.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1017/S0022377817000472

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author


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Funding agency for:
Pusztai, I
Grant:
600398
More from this funder
Funding agency for:
Pusztai, I
Grant:
600398


Publisher:
Cambridge University Press
Journal:
Journal of Plasma Physics More from this journal
Volume:
83
Issue:
4
Pages:
1-38
Publication date:
2017-07-03
Acceptance date:
2017-06-05
DOI:
EISSN:
1469-7807
ISSN:
0022-3778


Keywords:
Pubs id:
pubs:690865
UUID:
uuid:61c95d74-ba7c-4f30-9e6a-d58b62c23af9
Local pid:
pubs:690865
Source identifiers:
690865
Deposit date:
2017-10-31
ARK identifier:

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