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research article

Guiding-centre theory for kinetic-magnetohydrodynamic modes in strongly flowing plasmas

Lanthaler, S.  
•
Graves, J. P.
•
Pfefferle, D.  
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July 1, 2019
Plasma Physics And Controlled Fusion

A kinetic-magnetohydrodynamic model with kinetic pressure closure is derived from a consistent guiding-centre framework. Higher-order (gyroviscous) corrections to the pressure tensor are derived in complex geometry from a reduced kinetic equation. The proposed model allows for flows of the order of the thermal ion velocity, taking into account important centrifugal effects due to the E x B flow, as well as the effects of diamagnetic flows associated with finite Larmor radius corrections to both ion fluid inertia and long mean-free path contributions. Wave-particle interactions, such as toroidal drift-resonance, are retained. Furthermore, the linearised model includes a quasi-neutrality equation, allowing the effects of a parallel electric field to be studied in fast rotating tokamak plasmas.

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Type
research article
DOI
10.1088/1361-6587/ab1d21
Web of Science ID

WOS:000470209800001

Author(s)
Lanthaler, S.  
Graves, J. P.
Pfefferle, D.  
Cooper, W. A.  
Date Issued

2019-07-01

Publisher

IOP PUBLISHING LTD

Published in
Plasma Physics And Controlled Fusion
Volume

61

Issue

7

Article Number

074006

Subjects

Physics, Fluids & Plasmas

•

Physics

•

guiding-centre theory

•

kinetic-mhd

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gyroviscous

•

lie perturbation

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mhd stability

•

rotation

•

internal kink mode

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gyroviscous force

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hydromagnetic equations

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code

•

instabilities

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turbulence

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transport

•

stability

•

mhd

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SPC  
Available on Infoscience
June 18, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/157159
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