英国物理学会
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作者:Jungpyo Lee , Felix I. Parra , Michael Barnes
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (2)IOP
摘要:The diamagnetic flow due to the radial pressure and temperature gradients and the E × B flow due to the radial electric field induce different turbulent momentum fluxes in a tokamak. As a result, when the diamagnetic and E × B flows cancel giving zero net toroidal rotation, ...
作者:Jungpyo Lee , Jeffrey Freidberg ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (6)IOP
摘要:A highly elongated plasma is desirable in order to increase plasma pressure and energy confinement to maximize fusion power output. However, there is a limit to the maximum achievable elongation which is set by vertical instabilities driven by the n = 0 MHD mode. This limit ...
作者:... Felix I Parra , Jungpyo Lee , Antoine J Cerfon
来源:[J].Plasma Physics and Controlled Fusion(IF 2.369), 2016, Vol.58 (12)IOP
摘要:Tokamaks with up–down asymmetric poloidal cross-sections spontaneously rotate due to turbulent transport of momentum. In this work, we investigate the effect of the Shafranov shift on this intrinsic rotation, primarily by analyzing tokamaks with tilted elliptical flux surfac...
作者:Jungpyo Lee , David Smithe ...
来源:[J].Plasma Physics and Controlled Fusion(IF 2.369), 2018, Vol.60 (2)IOP
摘要:In this paper, the analytical form of the quasilinear diffusion coefficients is modified from the Kennel–Engelmann diffusion coefficients to guarantee the positive definiteness of its bounce average in a toroidal geometry. By evaluating the parallel inhomogeneity of plasmas ...
作者:Jungpyo Lee , Mark A Cappelli
来源:[J].Journal of Physics D: Applied Physics(IF 2.528), 2008, Vol.41 (18)IOP
摘要:In this paper, we present finite difference time domain (FDTD) simulations of millimetre-wave propagation through the near-field plasma plume of low power Hall thrusters. The simulations are intended to address potential issues (collisions, magnetic fields) that may affect the va...

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