Results 61 to 70 of about 6,414 (234)
Magnetic configuration effects on the Wendelstein 7-X stellarator
, 2022 855860The two leading concepts for confining high-temperature fusion plasmas are the tokamak and the stellarator. Tokamaks are rotationally symmetric and use a large plasma current to achieve confinement, whereas stellarators are non-axisymmetric and ...
Roscher, H.-J. +3 more
core +2 more sources
Nonlinear saturation of ballooning modes in stellarators
Nuclear FusionBallooning mode saturation is investigated in realistic stellarator configurations using the flux tube approach of Ham et al (2018 Plasma Phys. Control. Fusion 60 075017), Ham et al (2016 Phys. Rev. Lett. 116 235001). The method is adapted to account for
X. Chu +4 more
doaj +1 more source
A novel scheme for error field correction in permanent magnet stellarators
Nuclear Fusion, 2023 Stellarators offer a promising path towards fusion reactors, but their design and construction are complicated by stringent tolerance requirements on highly complex 3D coils. A potential way to simplify the engineering requirements for stellarators is to
A. Rutkowski +4 more
doaj +1 more source
Toward plasma drifts in EMC3: Implementation of gradient, divergence, and particle tracing schemes
Contributions to Plasma Physics, Volume 64, Issue 7-8, August-September 2024.Abstract This paper presents a first implementation of gradient, divergence, and particle tracing schemes for the EMC3 code, a stochastic 3D plasma fluid code widely employed for edge plasma and impurity transport modeling in tokamaks and stellarators.
Ruben De Wolf +6 more
wiley +1 more source
Drift waves in stellarator geometry [PDF]
, 2000 Drift waves are investigated in a real three-dimensional stellarator geometry. A linear system, based on the cold ion fluid model and a ballooning mode formalism, is solved numerically in the geometry of the stellarator H1-NF.
Gardner, H.J. +3 more
core +1 more source
Gyrokinetic prediction of core tungsten peaking in a WEST plasma with nitrogen impurities
Nuclear FusionTungsten peaking is predicted in the core of a WEST plasma with total-f gyrokinetic simulations, including both collisional and turbulent transport. This prediction is validated with a synthetic diagnostic of the bolometry.
J. Dominski +9 more
doaj +1 more source
International Journal of Energy Research, Volume 2024, Issue 1, 2024.The present research presents an innovative approach by integrating magnetohydrodynamic (MHD) flow with resistive heating, integrating a partly permeable layer and interior heat production to scrutinize natural convective flow within a square domain. It also examines both straight and wavy interfaces between the porous and fluid domains.
Nahid Hasan +3 more
wiley +1 more source
COIL DESIGN FOR HELIAC, A HELICAL AXIS STELLARATOR
, 1984 On décrit un stellarator à axe hélicoïdal (Héliac) pour le confinement de plasma à Béta élevé. On présente un projet préliminaire et l'analyse des forces et contraintes.A proposed Helical Axis Stellarator (Heliac) for High-Beta plasma confinement is ...
P. Materna, P. Heitzenroeder, K.L. Lee
core +1 more source
A single-field-period quasi-isodynamic stellarator
, 2022 Stellarator Equilibrium - Quasi-isodynamic, 1 field period Designed using the near-axis expansion (codes provided) Details of the design in https://arxiv.org/abs/2205 ...
Jorge, Rogerio
core +1 more source
Enhancing stellarator accessibility through port size optimization
Nuclear FusionAccess to the plasma chamber in a stellarator reactor is essential for maintenance and diagnostics. However, the complex geometry of stellarator coils, often characterized by their strong twisting, can severely limit the space available for access ports.
A. Baillod +3 more
doaj +1 more source