Results 31 to 40 of about 21,984 (205)

CREATE-FXB, a Fixed Boundary Code Based on Finite Element Methods for the Solution of the Grad–Shafranov Equation and Optimization of Equilibrium Currents

Energies
CREATE-FXB is a Finite Element Method solver specifically developed to address the fixed boundary problem, namely the determination of the Magnetohydrodynamic equilibrium of an axisymmetric plasma confined within a toroidal nuclear fusion device ...
Raffaele Albanese, Marco Neri, Pasquale Zumbolo   +2 more
doaj   +1 more source

Observation of long-radial-range-correlation in turbulence in high-collisionality high-confinement plasmas on DIII-D

Nuclear Fusion, 2023
We report on the observation of spatially asymmetric turbulent structures with a long radial correlation length in the core of high-collisionality H -mode plasmas on DIII-D tokamak.
R. Hong, T.L. Rhodes, P.H. Diamond, Y. Ren, L. Zeng, X. Jian, K. Barada, G. Wang, W.A. Peebles   +8 more
doaj   +1 more source

Intermittent turbulence and turbulent structures in a linear magnetized plasma

, 2005
Strongly intermittent turbulence is observed in the shadow of a limiter in the Large Plasma Device (LAPD) at UCLA [W. Gekelman, H. Pfister, Z. Lucky, J. Bamber, D. Leneman, and J. Maggs, Rev. Sci. Inst. {\bfseries 62}, 2875 (1991)].
Carter, T. A.
core   +1 more source

Convectively driven shear and decreased heat flux [PDF]

, 2014
We report on direct numerical simulations of two-dimensional, horizontally periodic Rayleigh-B\'enard convection, focusing on its ability to drive large-scale horizontal flow that is vertically sheared.
Flierl, Glenn R., Goluskin, David, Johnston, Hans, Spiegel, Edward A.   +3 more
core   +1 more source

L-H transition studies in tritium and deuterium–tritium campaigns at JET with Be wall and W divertor

Nuclear Fusion, 2023
The recent deuterium–tritium campaign in JET-ILW (DTE2) has provided a unique opportunity to study the isotope dependence of the L-H power threshold in an ITER-like wall environment (Be wall and W divertor).
E.R. Solano, G. Birkenmeier, C. Silva, E. Delabie, J.C. Hillesheim, A. Baciero, I. Balboa, M. Baruzzo, A. Boboc, M. Brix, J. Bernardo, C. Bourdelle, I.S. Carvalho, P. Carvalho, C.D. Challis, M. Chernyshova, A. Chomiczewska, R. Coelho, I. Coffey, T. Craciunescu, E. de la Cal, E. de la Luna, R. Dumont, P. Dumortier, M. Fontana, J.M. Fontdecaba, L. Frassinetti, D. Gallart, J. Garcia, C. Giroud, W. Gromelski, R.B. Henriques, J. Hall, A. Ho, L.D. Horton, L. Horvath, P. Jacquet, I. Jepu, E. Joffrin, A. Kappatou, D.L. Keeling, D.B. King, V.G. Kiptily, K.K. Kirov, D. Kos, E. Kowalska-Strzęciwilk, M. Lennholm, E. Lerche, E. Litherland-Smith, A. Loarte, B. Lomanowski, P.J. Lomas, C.F. Maggi, J. Mailloux, M.J. Mantsinen, M. Maslov, A.G. Meigs, I. Monakhov, R.B. Morales, A.H. Nielsen, D. Nina, C. Noble, E. Pawelec, M. Poradzinski, G. Pucella, P. Puglia, D. Réfy, J. Juul Rasmussen, E. Righi, F.G. Rimini, T. Robinson, M. Sertoli, S.A. Silburn, G. Sips, P. Sirén, Ž. Štancar, H.J. Sun, G. Szepesi, D. Taylor, E. Tholerus, B. Thomas, G. Verdoolaege, P. Vincenzi, B. Viola, N. Vianello, T. Wilson, JET Contributors   +86 more
doaj   +1 more source

Microturbulence studies in RFX-mod

, 2010
Present-days Reversed Field Pinches (RFPs) are characterized by quasi-laminar magnetic configurations in their core, whose boundaries feature sharp internal transport barriers, in analogy with tokamaks and stellarators.
Bonfiglio D, Cappello S, Escande D F, F Sattin, Gobbin M, Guo S C, Horton W, I Predebon, M Veranda, Martin P, Menmuir S, Paccagnella R, S C Guo, S F Liu, Sattin F, Vianello N, X Garbet, Zuin M   +17 more
core   +1 more source

Shear Alfven wave continuous spectrum within magnetic islands

, 2010
The radial structure of the continuous spectrum of shear Alfven waves is calculated in this paper within the separatrix of a magnetic island. Geometrical effects due to the noncircularity of the flux surface's cross section are retained to all orders. On
Biancalani, Alessandro, Chen, Liu, Pegoraro, Francesco, Zonca, Fulvio   +3 more
core   +1 more source

Coupling Fluid Neutrals to Gyrokinetic Plasma Dynamics for Edge and SOL Turbulence Simulations

Contributions to Plasma Physics, EarlyView.
ABSTRACT Accurate modeling of turbulent transport in magnetic confinement fusion devices requires extending first‐principles gyrokinetic simulations from the core to the edge and scrape‐off layer (SOL), where additional physics—particularly plasma–neutrals interactions—must be included.
Sabine Ogier‐Collin, Philipp Ulbl, Wladimir Zholobenko, Frank Jenko   +3 more
wiley   +1 more source

Determining the validity of tokamak perturbed equilibrium modeling using nonlinear equilibria

Nuclear Fusion
The prediction of perturbed equilibrium models for tokamaks with small non-axisymmetric fields is strongly dependent on which reference frame for axisymmetry is assumed.
J. Halpern, N.C. Logan, E. Paul, C. Paz-Soldan   +3 more
doaj   +1 more source

Kinetic modelling of runaway electron avalanches in tokamak plasmas

, 2015
Runaway electrons (REs) can be generated in tokamak plasmas if the accelerating force from the toroidal electric field exceeds the collisional drag force due to Coulomb collisions with the background plasma.
Decker, J., Granetz, R. S., Nilsson, E., Peysson, Y., Saint-Laurent, F., Vlainic, M.   +5 more
core   +1 more source