Results 31 to 40 of about 2,329 (224)

Data for "Figures of merit for stellarators near the magnetic axis"

, 2020
Data for figures in the paper "Figures of merit for stellarators near the magnetic ...
Matt Landreman
core   +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

Suppression of non-axisymmetric field-induced α-particle loss channels in a quasi-axisymmetric stellarator

AIP Advances, 2022
In future fusion reactors, the confinement of α-particles is a crucial issue. The perfect omnigenity may be difficult to achieve in the quasi-isodynamic and quasi-symmetric stellarators when a multi-objective optimization is considered.
Yichao Zhang, Haifeng Liu, Jie Huang, Yuhong Xu, Jian Zhang, Akihiro Shimizu, Shinsuke Satake, Mitsutaka Isobe, Xianqu Wang, Jun Cheng, Hai Liu, Xin Zhang, Changjian Tang   +12 more
doaj   +1 more source

Towards a Mean‐Field Braginskii Model for Stellarators

Contributions to Plasma Physics, EarlyView.
ABSTRACT Experiments in the stellarator Wendelstein 7‐X indicate that particle drifts have a significant impact on the plasma in the scrape‐off layer. However, drift effects have been absent in the mean‐field transport codes such as EMC3‐Eirene. For this reason, we present the first steps towards a mean‐field model that incorporates drifts. The code is
T. Tork, F. Reimold, D. Bold, B. Shanahan, B. Dudson, A. Stegmeir, P. Manz, The W7‐X Team   +7 more
wiley   +1 more source

Overview of the European breeding blanket programme for HELIAS 5-B: dual coolant lead–lithium design, integration and tools

Nuclear Fusion
As part of EUROfusion’s mission to bring stellarators to technological maturity, the stellarator power plant studies (SPPS) work package prospective R&D (WPPRD) began in 2021 to develop a HELIAS-class power plant.
I. Palermo, J. Alguacil, G. Bongioví, J.P. Catalán, I. Catanzaro, I. Fernández-Berceruelo, S. Giambrone, G. Gomez Fonfría, J.A. Noguerón, V. Queral, D. Rapisarda, F. Roca Urgorri, D. Sosa   +12 more
doaj   +1 more source

Data-driven approach to model the influence of magnetic geometry in the confinement of fusion devices

Nuclear Fusion
Designing a fusion energy device to produce as much energy as possible requires balancing numerous physics constraints and metrics. In stellarators, the geometry is very flexible and involves a large number of free parameters.
R. Laia, R. Jorge, G. Abreu
doaj   +1 more source

Stellar activity [PDF]

Symposium - International Astronomical Union, 1986
We have been monitoring the CaII H and K emission in late-type giant stars using the Mt Wilson 60-inch telescope. It is a continuation of work that Olin Wilson began almost 20 years ago. As a result not only have starspot cycles been detected (equivalent to the solar sunspot cycle), but rotation periods have now been measured.
openaire   +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

Less constrained omnigeneous stellarators

, 2015
A stellarator is said to be omnigeneous if all particles have vanishing average radial drifts. In omnigeneous stellarators, particles are perfectly confined in the absence of turbulence and collisions, whereas in non-omnigeneous configurations, particle ...
Parra, F., Calvo, I., Helander, P., Landreman, M.   +3 more
core   +1 more source

A general comparison between tokamak and stellarator plasmas

Matter and Radiation at Extremes, 2016
This paper generally compares the essential features between tokamaks and stellarators, based on previous review work individually made by authors on several specific topics, such as theories, bulk plasma transport and edge divertor physics, along with ...
Yuhong Xu
doaj   +1 more source