Results 41 to 50 of about 2,917 (170)
Global Alfven Eigenmodes in the H-1 heliac [PDF]
, 2017 Recent upgrades in H-1 power supplies have enabled the operation of the H-1 experiment at higher heating powers than previously attainable. A heating power scan in mixed hydrogen/helium plasmas reveals a change in mode activity with increasing heating ...
Blackwell, B. D. +7 more
core +2 more sources
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
Nuclear FusionThe neoclassical ambipolarity condition governing the radial electric field in stellarators can have several solutions, and sudden transitions (in radius) between these can then take place. The radial position and structure of such a transition cannot be
M.D. Kuczyński +11 more
doaj +1 more source
Contribution to fusion research from IAEA coordinated research projects and joint experiments [PDF]
, 2015 The paper presents objectives and activities of IAEA Coordinated Research Projects 'Conceptual development of steady-state compact fusion neutron sources' and 'Utilisation of a network of small magnetic confinement fusion devices for mainstream fusion ...
A. Melnikov +8 more
core +2 more sources
36. Theory of Stellar Atmospheres [PDF]
Transactions of the International Astronomical Union, 1970 This report has been prepared by the President with the assistance of the Vice-President, the Members of the Organizing Committee, V. V. Ivanov, P. Conti and of D. G. Hummer. The work of Commission 36 comes in contact with that of many commissions. Some subjects may be dealt with more fully in those reports; some subjects may have been “unlawfully ...
A. B. Underhill +6 more
openaire +1 more source
Nuclear FusionThe radial electric field in the Wendelstein 7-X stellarator is computed by means of self-consistent, global, neoclassical simulations using the gyrokinetic particle-in-cell code EUTERPE.
M.D. Kuczyński +6 more
doaj +1 more source
Nonlinear growth of zonal flows by secondary instability in general magnetic geometry
, 2017 We present a theory of the nonlinear growth of zonal flows in magnetized plasma turbulence, by the mechanism of secondary instability. The theory is derived for general magnetic geometry, and is thus applicable to both tokamaks and stellarators.
Navarro, A. Bañón, Plunk, G. G.
core +1 more source
Nuclear FusionA recently installed high-speed charge exchange diagnostic at the W7-X stellarator has been used to identify several high-n Rydberg emission lines near 500 nm following impurity injections.
Colin Swee +9 more
doaj +1 more source
Rotating saddle trap as Foucault's pendulum [PDF]
, 2015 One of the many surprising results found in the mechanics of rotating systems is the stabilization of a particle in a rapidly rotating planar saddle potential. Besides the counterintuitive stabilization, an unexpected precessional motion is observed.
Brouwer L. E. J. +7 more
core +2 more sources
Theory of Stellar and Extragalactic Jets [PDF]
International Astronomical Union Colloquium, 1986 AbstractDifferent types of astrophysical jets are briefly described and the wide differences in their observed properties are emphasized. Various physical mechanisms that have been proposed for creating jets, based on gas dynamical, magnetic, and radiative stresses are briefly reviewed. It is argued that magnetic fields are probably generally important
openaire +2 more sources