Results 41 to 50 of about 10,346 (211)

Spatiotemporal and Wavenumber Resolved Bicoherence at the Low to High Confinement Transition in the TJ-II Stellarator

, 2013
Plasma turbulence is studied using Doppler reflectometry at the TJ-II stellarator. By scanning the tilt angle of the probing beam, different values of the perpendicular wave numbers are probed at the reflection layer. In this way, the interaction between
Ascasíbar, E., Estrada, T., Happel, T., Hidalgo, C., van Milligen, B. Ph.   +4 more
core   +1 more source

Perturbing an axisymmetric magnetic equilibrium to obtain a quasi-axisymmetric stellarator

, 2020
It is demonstrated that finite-pressure, approximately quasi-axisymmetric stellarator equilibria can be directly constructed (without numerical optimization) via perturbations of given axisymmetric equilibria.
Plunk, G. G.
core   +1 more source

Implementation of the E×B and Grad‐B Drift in the EMC3 Code and Verification Using the Method of Manufactured Solutions

Contributions to Plasma Physics, EarlyView.
ABSTRACT Effective management of particle and power exhaust is essential for fusion reactor operation, requiring accurate 3D modeling of divertor physics. The EMC3 code is a well‐established Monte Carlo tool for plasma transport in stellarator edge regions, but until now lacked E×B$$ E\times B $$ and diamagnetic drifts.
Ruben De Wolf, Felix Reimold, Wouter Dekeyser, Yuhe Feng, Giovanni Samaey, Martine Baelmans   +5 more
wiley   +1 more source

Diseño de un Interferómetro Heterodino de Microondas para la Medición de la Densidad Electrónica del Plasma en el SCR-1

Tecnología en Marcha, 2020
El Stellarator de Costa Rica 1 (SCR-1) es un dispositivo pequeño de confinamiento magnético de tipo stellarator modular que se emplea para la investigación de plasmas de alta temperatura y baja densidad, el primero de América Latina. [1]. El propósito de
Jorge Sanchez Castro, Ivan Vargas
doaj   +1 more source

A comparison of the influence of plasmoid-drift mechanisms on plasma fuelling by cryogenic pellets in ITER and Wendelstein 7-X

Nuclear Fusion, 2023
Pellet injection is the most promising technique to achieve efficient plasma core fuelling, key for attaining stationary scenarios in large magnetic confinement fusion devices.
N. Panadero, F. Koechl, A.R. Polevoi, J. Baldzuhn, C.D. Beidler, P.T. Lang, A. Loarte, A. Matsuyama, K.J. McCarthy, B. Pégourié, Y. Turkin   +10 more
doaj   +1 more source

Impurity transport and bulk ion flow in a mixed collisionality stellarator plasma

, 2017
The accumulation of impurities in the core of magnetically confined plasmas, resulting from standard collisional transport mechanisms, is a known threat to their performance as fusion energy sources.
Helander, Per, Mollén, Albert, Newton, Sarah L., Smith, Håkan M.   +3 more
core   +1 more source

Magneto‐Thermal Assessment of Ferrofluid Flow in Corrugated Porous Domain With Rotating Cylinder for Nuclear Systems

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This research presents a novel approach by combining magnetohydrodynamic (MHD) flow with ohmic heating to investigate the conjugate mixed convective transport of ferrofluid in a discretely heated, smooth/wavy‐walled, square‐shaped porous compartment featuring a clockwise spinning cylindrical body positioned at various locations.
Nahid Hasan, Sumon Saha, Sreekala Cherkkarathandayan Karappan, Siam Abrar Saad, Hamza Faraji   +4 more
wiley   +1 more source

Impact of error fields and error field correction on heat fluxes in SPARC

Nuclear Fusion
Using a single toroidal array of coils to reduce the $m,n = 2,1$ resonant error field (EF) produced by the misalignment of the axisymmetric coils in SPARC can result in the enhancement of the local divertor heat fluxes. Managing high divertor heat fluxes
S. Munaretto, A. Kleiner, R.M. Churchill, D. Corona, T. Looby, M. Scotto d’Abusco, A. Wingen   +6 more
doaj   +1 more source

Numerical studies on electron cyclotron resonance heating and optimization in the CN-H1 stellarator

Nuclear Engineering and Technology
The H1-NF stellarator in the Australian National University has been transported to University of South China and is currently being restored and reconstructed to the CN-H1 stellarator.
Chun Yan Li, Ping Wei Zheng, Xue Yu Gong, Zheng Kun Gao, Xin Chen Jiang   +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, K. Hammond, C. Zhu, D. Gates, A. Chambliss   +4 more
doaj   +1 more source