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Linearized model Fokker-Planck collision operators for gyrokinetic simulations. I. Theory

Abstract:

A new analytically and numerically manageable model collision operator is developed specifically for turbulence simulations. The like-particle collision operator includes both pitch-angle scattering and energy diffusion and satisfies the physical constraints required for collision operators: it conserves particles, momentum and energy, obeys Boltzmann's H-theorem (collisions cannot decrease entropy), vanishes on a Maxwellian, and efficiently dissipates small-scale structure in the velocity sp...

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Publication status:
Published

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Publisher copy:
10.1063/1.3046067
Journal:
Phys. Plasmas More from this journal
Volume:
15
Issue:
12
Pages:
122509
Publication date:
2008-08-11
DOI:
ISSN:
1070-664X
Language:
English
Keywords:
Pubs id:
pubs:161085
UUID:
uuid:6d68260c-ce6e-47e6-80df-d4d0fb4bf836
Local pid:
pubs:161085
Source identifiers:
161085
Deposit date:
2012-12-19

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