Results 121 to 130 of about 2,079 (226)

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

A general framework for quantifying uncertainty at scale. [PDF]

Commun Eng, 2022
Farcaş IG, Merlo G, Jenko F.
europepmc   +1 more source

Flow damping in stellarators close to quasisymmetry

, 2014
Quasisymmetric stellarators are a type of optimized stellarators for which flows are undamped to lowest order in an expansion in the normalized Larmor radius. However, perfect quasisymmetry is impossible.
Alonso, JA, Calvo, I, Parra, FI, Velasco, JL   +3 more
core   +1 more source

Deep neural-network based optimization for the design of a multi-element surface magnet for MRI applications. [PDF]

Inverse Probl, 2022
Tewari S, Yousefi S, Webb A.
europepmc   +1 more source

Physical origin of ultra-high neutral pressures in the Large Helical Device

Nuclear Fusion
Efficient particle exhaust remains a key challenge in magnetic confinement fusion, particularly in stellarators, where divertor neutral pressures are typically low. Recently, exceptionally high neutral pressures-up to 2.4 Pa-were measured in the divertor
U. Wenzel, G. Motojima, S. Masuzaki, M. Kobayashi, M. Goto, B. Peterson, M. Shoji   +6 more
doaj   +1 more source

Multi-machine scaling laws for fuel and impurity puffing rates sufficient for detachment access: a systematic review of magnetic confinement fusion devices

Nuclear Fusion
An open-source database of 457 experimental and numerical entries representing 32 machines—including tokamaks, stellarators, and linear plasma devices—is assembled.
M. Moscheni, A. Herrmann, R. Kembleton, M. Kryjak, S. Lazerson, F. Levi, M. Siccinio, P. Staniec, T. Giegerich, C. Tantos, the Gauss Fusion Team   +10 more
doaj   +1 more source

Designs Studies of Low-Aspect Ratio Quasi-Omnigenous Stellarators [PDF]

, 1998
Significant progress has been made in the development of new modest-size compact stellarator devices that could test optimization principles for the design of a more attractive reactor. These are 3 and 4 field period low-aspect-ratio quasi-omnigenous (QO)
Carreras, B. A., Lynch, V. E., Spong, D. A., Whitson, J. C., Batchelor, D. B., Sanchez, R., Hirshman, S. P.   +6 more
core  

Panel on high beta and/or high field tokamaks and stellarators [PDF]

, 1988
This paper discusses high beta aspects of the stellarators and tokamak reactors and the need to understand the MHD equations involved.
Sheffield, J.
core  

Confinement magnétique dans les stellarators : champs harmoniques et différentiation de forme

In this thesis, we consider shape differentiation problems for harmonic fields with applications to the study of magnetic confinement in stellarators.
Roussel, Robin
core   +1 more source

Stellar magnitudes [PDF]

Astronomische Nachrichten, 1879
openaire   +1 more source