Results 61 to 70 of about 5,886 (235)

The topology of non-resonant stellarator divertors

Nuclear Fusion
We apply topological methods to better understand how the magnetic field in the stellarator edge can be diverted away from the confined region. Our primary method is calculating the winding numbers of closed contours, which gives information on the ...
Robert Davies, Christopher B. Smiet, Alkesh Punjabi, Allen H. Boozer, Sophia A. Henneberg   +4 more
doaj   +1 more source

Statistical Analysis of Plasma Dynamics in Gyrokinetic Simulations of Stellarator Turbulence. [PDF]

Entropy (Basel), 2023
Papadopoulos AD, Anderson J, Kim EJ, Mavridis M, Isliker H.   +4 more
europepmc   +1 more source

Trapped electron mode in a quasi-isodynamic stellarator

Nuclear Fusion
Global gyrokinetic simulations find a strongly unstable trapped electron mode excited by a density gradient in a quasi-isodynamic stellarator. The eigenmode structure localizes on the inner side of the torus with an unfavorable magnetic curvature and ...
Javier H. Nicolau, Xishuo Wei, Pengfei Liu, Gyungjin Choi, Zhihong Lin   +4 more
doaj   +1 more source

ParaStell: parametric modeling and neutronics support for stellarator fusion power plants

Frontiers in Nuclear Engineering
The three-dimensional variation inherent to stellarator geometries and fusion sources motivates three-dimensional modeling to obtain accurate results from computational modeling in support of design and analysis of first wall, blanket, and shield (FWBS ...
Connor Moreno, Aaron Bader, Aaron Bader, Paul Wilson   +3 more
doaj   +1 more source

Coil optimization methods for a planar coil stellarator

Nuclear Fusion
The planar coil stellarator design is a novel approach to producing the confining magnetic field of a stellarator plasma. The work presented here details the optimization of the two types of planar coils that are used in the planar coil design: the ...
T.G. Kruger, M.F. Martin, D.A. Gates, the Thea Energy Team   +3 more
doaj   +1 more source

Stellar winds

This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N.
openaire   +2 more sources

First experimental observation of zonal flows in the optimized stellarator Wendelstein 7-X

Physical Review Research
In this work, we present the first experimental evidence of the presence of zonal flow (ZF) structures in the optimized stellarator Wendelstein 7-X.
D. Carralero, T. Estrada, J. M. García-Regaña, E. Sánchez, T. Windisch, A. Alonso, E. Maragkoudakis, C. Brandt, K. J. Brunner, C. Gallego-Castillo, P. Kornejew, K. Parks, K. Rahbarnia, H. Thienpondt   +13 more
doaj   +1 more source

H-mode transition and pedestal studies. [PDF]

Philos Trans A Math Phys Eng Sci, 2023
Andrew Y, Kim EJ.
europepmc   +1 more source

Determination of poloidal mode numbers of MHD modes and their radial location using a soft x-ray camera array in the Wendelstein 7-X stellarator

, 2021
M. Dreval, C. Brandt, J. Schilling, H. Thomsen, A. A. Beletskii, A. K̈onies, the W7-X Team   +6 more
openalex   +1 more source

Global fluid simulation of plasma turbulence in stellarators with the GBS code

Nuclear Fusion
The implementation of three-dimensional magnetic fields, such as the ones of stellarators, in the GBS code (Ricci et al 2012 Plasma Phys. Control. Fusion 54 124047; Giacomin et al 2022 J. Comput. Phys. 464 111294) is presented, and simulation results are
A.J. Coelho, J. Loizu, P. Ricci, Z. Tecchiolli   +3 more
doaj   +1 more source