Year: 2021
Type: article
Abstract: Gyrokinetic simulations of DIII-D tokamak equilibrium find that resonant magnetic perturbation (RMP) drives a neoclassical non-ambipolar electron particle flux, which causes a rapid change of equilibrium radial electric fields consistent with experimental observations during the suppression of the edge localized mode (ELM). The simulation results provide a support for the conjecture that RMP-induced changes of radial electric fields lead to the enhanced turbulent transport at the pedestal top during the ELM suppression (Taimourzadeh et al 2019 Nucl. Fusion 59 046005). Furthermore, gyrokinetic simulations of collisionless damping of zonal flows show that resonant responses to the RMP decrease the residual level of the zonal flows and damp the geodesic acoustic mode.
Source: Plasma Science and Technology
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G121915436, G1286236842, G1645119126, G203625172, G2988778103, G3083819904, THE DIII-D NATIONAL FUSION PROGRAM AND ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT, G419881185, G42916606, G4423657506, PHYSICS BASIS, OPTIMIZATION, AND CONTROL FOR INTEGRATED 3D EDGE LONG-PULSE TOKAMAK SCENARIOS, G4501827968, G4896746546, G498139845, G516483051, G5645792746, G660579501, G663282964, G675320460, THE DIII-D NATIONAL FUSION PROGRAM AND ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT, G8118967508, G8269158468, THE DIII-D FUSION RESEARCH PROGRAM AND ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT, G8906985441, G969889393
OpenAlex ID: W3187529353