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On non-local energy transfer via zonal flow in the Dimits shift

Abstract:

The two-dimensional Terry–Horton equation is shown to exhibit the Dimits shift when suitably modified to capture both the nonlinear enhancement of zonal/drift-wave interactions and the existence of residual Rosenbluth–Hinton states. This phenomenon persists through numerous simplifications of the equation, including a quasilinear approximation as well as a four-mode truncation. It is shown that the use of an appropriate adiabatic electron response, for which the electrons are not affe...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1017/s0022377817000708

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Sub department:
Theoretical Physics
Department:
Unknown
Role:
Author
ORCID:
0000-0003-3112-9221
Publisher:
Cambridge University Press
Journal:
Journal of Plasma Physics More from this journal
Volume:
83
Issue:
5
Publication date:
2017-10-10
Acceptance date:
2017-08-30
DOI:
EISSN:
1469-7807
ISSN:
0022-3778
Language:
English
Keywords:
Pubs id:
pubs:1043318
UUID:
uuid:b7c43530-99f6-4520-9fb1-1ec5753de93a
Local pid:
pubs:1043318
Source identifiers:
1043318
Deposit date:
2019-09-03

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