Influence of mean radial electric field on particle transport induced by RMPs in tokamak plasmas
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5018662
Abstract: The quasi-linear theory of the particle diffusion coefficient including the finite Larmor radius effect and the mean radial electric field ( E r without shear) in a stochastic magnetic field is derived. The theory has… read more here.
Keywords: theory; field; radial electric; mean radial ... See more keywords
Magnetic configuration effects on the Reynolds stress in the plasma edge
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5037511
Abstract: Breaking the poloidal symmetry of the magnetic shear induced tilt of turbulent structures, by either divertor X-point resistivity or limiter positions, can lead to a finite (residual) contribution to the flux-surface averaged radial-binormal Reynolds stress.… read more here.
Keywords: field; radial electric; geometry; reynolds stress ... See more keywords
Experimental study of the edge radial electric field in different drift configurations and its role in the access to H-mode at ASDEX Upgrade
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Plasmas"
DOI: 10.1063/5.0102763
Abstract: The formation of the equilibrium radial electric field ( Er) has been studied experimentally at ASDEX Upgrade (AUG) in L-modes of “favorable” (ion [Formula: see text]-drift toward primary X-point) and “unfavorable” (ion [Formula: see text]-drift… read more here.
Keywords: radial electric; drift configurations; drift; field ... See more keywords
The performance of equilibrium radial electric field shear on microturbulence with different magnetic shears in tokamak plasmas
Sign Up to like & getrecommendations! Published in 2023 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/accd1d
Abstract: Global gyrokinetic particle simulations show that equilibrium radial electric field (E r ) shear reduces the linear growth rate, ion heat conductivity, and nonlinear turbulence amplitude for both the ion temperature gradient (ITG) and kinetic… read more here.
Keywords: electric field; radial electric; field shear; turbulence ... See more keywords
Model validation for radial electric field excitation during L–H transition in JFT-2M tokamak
Sign Up to like & getrecommendations! Published in 2017 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/aa5d03
Abstract: In this paper, we elaborate the electric field excitation mechanism during the L–H transition in the JFT-2M tokamak. Using time derivative of the Poisson's equation, models of the radial electric field excitation is examined. The… read more here.
Keywords: field; radial electric; transition jft; field excitation ... See more keywords
Effects of RMP-induced changes of radial electric fields on microturbulence in DIII-D pedestal top
Sign Up to like & getrecommendations! Published in 2019 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/aafe3a
Abstract: Gyrokinetic simulations of DIII-D tokamak with axisymmetric equilibrium show that the reduction in the radial electric field shear at the top of the pedestal during edge localized mode (ELM) suppression with the n = 2… read more here.
Keywords: top pedestal; turbulence; radial electric; effects rmp ... See more keywords
Influence of the Radial Electric Field Appraisal on Lightning-Induced Overvoltages Statistical Assessment
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Electromagnetic Compatibility"
DOI: 10.1109/temc.2019.2899656
Abstract: This paper analyzes the influence of the radial electric field radiated by return strokes on the lightning performance of an overhead distribution line. The calculation of the lightning electromagnetic pulse (LEMP) over a finitely conducting… read more here.
Keywords: field; influence radial; induced overvoltages; radial electric ... See more keywords
Analysis of the interaction of an electron with radial electric fields in the presence of a disclination
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Geometric Methods in Modern Physics"
DOI: 10.1142/s021988781950172x
Abstract: We consider an elastic medium with a disclination and investigate the topological effects on the interaction of a spinless electron with radial electric fields through the WKB (Wentzel, Kramers, Brillouin) approximation. We show how the… read more here.
Keywords: radial electric; interaction spinless; disclination; electron radial ... See more keywords