Results 111 to 120 of about 158 (153)

Multi-fidelity information fusion for turbulent transport modeling in magnetic fusion plasma. [PDF]

Sci Rep
Maeyama S, Honda M, Narita E, Toda S.
europepmc   +1 more source

Gyrokinetic field theory

Gyrokinetic field theory
The Lagrangian formulation of the gyrokinetic theory is generalized in order to describe the particles' dynamics, as well as the self-consistent behavior of the electromagnetic fields. The gyrokinetic equation for the particle distribution function and the gyrokinetic Maxwell's equations, for the electromagnetic fields, are both derived from the ...
openaire  

Inertial range of magnetorotational turbulence. [PDF]

Sci Adv
Kawazura Y, Kimura SS.
europepmc   +1 more source

Avoiding fusion plasma tearing instability with deep reinforcement learning. [PDF]

Nature
Seo J, Kim S, Jalalvand A, Conlin R, Rothstein A, Abbate J, Erickson K, Wai J, Shousha R, Kolemen E.   +9 more
europepmc   +1 more source

Milestone in predicting core plasma turbulence: successful multi-channel validation of the gyrokinetic code GENE. [PDF]

Nat Commun
Höfler K, Görler T, Happel T, Lechte C, Molina P, Bergmann M, Bielajew R, Conway GD, David P, Denk SS, Fischer R, Hennequin P, Jenko F, McDermott RM, White AE, Stroth U, ASDEX Upgrade Team.   +16 more
europepmc   +1 more source

The Interplay Between Collisionless Magnetic Reconnection and Turbulence. [PDF]

Space Sci Rev
Stawarz JE, Muñoz PA, Bessho N, Bandyopadhyay R, Nakamura TKM, Eriksson S, Graham DB, Büchner J, Chasapis A, Drake JF, Shay MA, Ergun RE, Hasegawa H, Khotyaintsev YV, Swisdak M, Wilder FD.   +15 more
europepmc   +1 more source

Outstanding Questions and Future Research on Magnetic Reconnection. [PDF]

Space Sci Rev
Nakamura R, Burch JL, Birn J, Chen LJ, Graham DB, Guo F, Hwang KJ, Ji H, Khotyaintsev YV, Liu YH, Oka M, Payne D, Sitnov MI, Swisdak M, Zenitani S, Drake JF, Fuselier SA, Genestreti KJ, Gershman DJ, Hasegawa H, Hoshino M, Norgren C, Shay MA, Shuster JR, Stawarz JE.   +24 more
europepmc   +1 more source

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Exceptional points in linear gyrokinetics

Physics of Plasmas, 2008
When performing linear gyrokinetic simulations, it is found that various types of microinstabilities, which are usually considered as strictly separated, can actually be transformed into each other via continuous variations of the plasma parameters. This behavior can be explained in terms of so-called exceptional points, which have their origin in the ...
Jenko F, Merz F
exaly   +3 more sources

Generalized gyrokinetics

The Physics of Fluids, 1985
A nonlinear gyrokinetic formalism is developed which admits mean velocities comparable to thermal speeds in arbitrary magnetic field geometry. The theory is fully electromagnetic and does not employ an eikonal ansatz. The moments of the gyrokinetic distribution function, as well as the gyrokinetic equation it satisfies, are derived to first order in ...
Bernstein, Ira B., Catto, Peter J.
openaire   +2 more sources

On the gyrokinetic equilibrium

Physics of Plasmas, 2000
Recent developments in gyrokinetic-magnetohydrodynamics (MHD) theory and in electromagnetic gyrokinetic particle simulations raise the question of consistency between the gyrokinetic model and the fluid model. Due to the special characteristics of the guiding center coordinates, it is a nontrivial exercise to show this consistency.
H. Qin, W. M. Tang, G. Rewoldt, W. W. Lee   +3 more
openaire   +1 more source