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A reanalysis of a strong-flow gyrokinetic formalism
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Sharma, Amil Yograj and McMillan, Ben F. (2015) A reanalysis of a strong-flow gyrokinetic formalism. Physics of Plasmas, 22 (3). pp. 1-6. 032510. ISSN 1070-664X.
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Official URL: http://dx.doi.org/10.1063/1.4916129
Abstract
We reanalyse an arbitrary-wavelength gyrokinetic formalism [A. M. Dimits, Phys. Plasmas 17, 055901 (2010)], which orders only the vorticity to be small and allows strong, time-varying flows on medium and long wavelengths. We obtain a simpler gyrocentre Lagrangian up to second order. In addition, the gyrokinetic Poisson equation, derived either via variation of the system Lagrangian or explicit density calculation, is consistent with that of the weak-flow gyrokinetic formalism [T. S. Hahm, Phys. Fluids 31, 2670 (1988)] at all wavelengths in the weak flow limit. The reanalysed formalism has been numerically implemented as a particle-in-cell code. An iterative scheme is described which allows for numerical solution of this system of equations, given the implicit dependence of the Euler-Lagrange equations on the time derivative of the potential.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QC Physics | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Library of Congress Subject Headings (LCSH): | Plasma (Ionized gases) -- Research | ||||||||
Journal or Publication Title: | Physics of Plasmas | ||||||||
Publisher: | American Institute of Physics | ||||||||
ISSN: | 1070-664X | ||||||||
Official Date: | 24 March 2015 | ||||||||
Dates: |
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Volume: | 22 | ||||||||
Number: | 3 | ||||||||
Number of Pages: | 6 | ||||||||
Page Range: | pp. 1-6 | ||||||||
Article Number: | 032510 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 28 July 2016 | ||||||||
Date of first compliant Open Access: | 28 July 2016 | ||||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||||||
Grant number: | EP/D062837/1 (EPSRC), EP/K000128/1 (EPSRC) |
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