Pullback transformation in gyrokinetic electromagnetic simulations

Pullback transformation in gyrokinetic electromagnetic simulations

It is shown that a considerable mitigation of the cancellation problem can be achieved by a slight modification of the simulation scheme. The new scheme is verified, simulating a Toroidal Alfvén Eigenmode in tokamak geometry at low perpendicular mode numbers, the so-called “MHD limit.” Also, an elec...

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Veröffentlicht in:Physics of plasmas 2014-09, Vol.21 (9)
Hauptverfasser: Mishchenko, Alexey, Könies, Axel, Kleiber, Ralf, Cole, Michael
Format: Artikel
Sprache:eng
Schlagworte:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
GEOMETRY
MAGNETOHYDRODYNAMICS
MODIFICATIONS
Plasma physics
SIMULATION
TOKAMAK DEVICES
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Zusammenfassung:It is shown that a considerable mitigation of the cancellation problem can be achieved by a slight modification of the simulation scheme. The new scheme is verified, simulating a Toroidal Alfvén Eigenmode in tokamak geometry at low perpendicular mode numbers, the so-called “MHD limit.” Also, an electromagnetic drift mode has been successfully simulated in a stellarator.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4895501