Results 91 to 100 of about 1,911,396 (184)

Direct optimization of neoclassical ion transport in stellarator reactors

Nuclear Fusion
We directly optimize stellarator neoclassical ion transport while holding neoclassical electron transport at a moderate level, creating a scenario favorable for impurity expulsion and retaining good ion confinement.
B.F. Lee, S.A. Lazerson, H.M. Smith, C.D. Beidler, N.A. Pablant   +4 more
doaj   +1 more source

Reduction of neoclassical bulk-ion transport to avoid helium-ash retention in stellarator reactors

Nuclear Fusion
The reduction of neoclassical energy transport in stellarators has traditionally focussed on optimizing magnetic fields for small values of ‘effective helical ripple’ — $\epsilon_\mathrm{eff}$ , the geometric factor associated with electron $1/\nu ...
C.D. Beidler, M. Drevlak, J. Geiger, P. Helander, H.M. Smith, Y. Turkin   +5 more
doaj   +1 more source

Suppressing trapped-electron-mode-driven turbulence via optimization of three-dimensional shaping

Nuclear Fusion
Turbulent transport driven by trapped electron modes (TEMs) is believed to drive significant heat and particle transport in quasihelically symmetric stellarators.
J.M. Duff, B.J. Faber, C.C. Hegna, M.J. Pueschel, P.W. Terry   +4 more
doaj   +1 more source

Discrete and continuum ballooning modes in a stellarator

CRPPSPC8th Toki 11th International Stellarator Conference, Toki-City, Japan, September/October 1997, Proc. published in J. Plasma and Fusion Res., SERIES, Vol.
Gardner, H.J., Singleton, D.B., Dewar, R.L., Jerome, L.W., Persson, M., Lewandowski, J.L.V., Cuthbert, P., Nakajima, N., Cooper, W.A.   +8 more
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(Stellarator theory)

, 1991
This report discusses particle modeling of stellarator divertors. (LSP)

core   +1 more source

Stellarator Equilibrium and Optimization

"Stellarator Optimization" tutorial presented by Dario Panici at the APS DPP Student Day (2024).
openaire   +2 more sources

Physics design of a high b quasi-axisymmetric stellarator

CRPPSPC8th Toki 11th International Stellarator Conference, Toki-City, Japan, September/October 1997, Proc. published in J. Plasma and Fusion Res., SERIES, Vol.
Satz, I., L.-P., Ku, Reimann, A., Goldston, R., Neilson, G.H., Zarnstorff, M., Boozer, A., Mynick, H., Monticello, D., Cooper, W.A.   +9 more
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Optimization of transport in stellarators [PDF]

, 1989
Here we relate two stellarator transport optimization schemes to single particle orbits. We also show that reducing transport in the 1/..nu.. regime reduces transport over a much broader range of collisionality.
Van Rij, W.I., Hedrick, C.L., Beasley, C.O.   +2 more
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Global stellarator coil optimization with quadratic constraints and objectives

Nuclear Fusion
Most present stellarator designs are produced by costly two-stage optimization: the first for an optimized equilibrium, and the second for a coil design reproducing its magnetic configuration.
Lanke Fu, Elizabeth J. Paul, Alan A. Kaptanoglu, Amitava Bhattacharjee   +3 more
doaj   +1 more source

Numerical Methods for Stellarator Equilibrium and Optimization: Continuation Methods, Free Boundary Equilibrium, and Constrained Optimization

The stellarator is a promising concept for a future nuclear fusion power plant, but hasgotten relatively little attention compared to the tokamak concept.
Conlin, William
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