Results 101 to 110 of about 2,473,114 (224)

Thermal profiles and improved confinement accessibility in RFX-mod and TCV [PDF]

, 2013
Humans do not live by bread alone. Physically we are puny creatures with limited prowess, but with unlimited dreams. In the last few decades humankind reached the Moon (1969) and built airports over the sea (1994), but 925 million people are still under-
Scaggion, Alessandro
core  

Integrated modeling of alpha particle losses in JET DT plasmas [PDF]

Alpha particle confinement is crucial for sustaining burning plasmas and designing future reactor concepts. Along with classical/prompt losses, various magnetohydrodynamic instabilities can lead to wave-particle interactions which can transport alpha ...
Dumont, R., J. Garcia, H. Sun, R. Dumont, Sharapov, S. E., Hawkes, N., S.E. Sharapov, N. Hawkes, Podesta, M., Kiptily, V. G., P.J. Bonofiglo, JET Contributors, Bonofiglo, P. J., the EUROfusion Tokamak Exploitation Team, M. Poradzinski, Keeling, D., V.G. Kiptily, M. Nocente, Nocente, M., Ž. Štancar, Stancar, Z., Garcia, J., Sun, H., D. Keeling, M. Gorelenkova, Fitzgerald, M., N.N. Gorelenkov, Rivero-Rodriguez, J., J. Rivero-Rodriguez, Poradzinski, M., M. Fitzgerald, M. Podestà, Gorelenkova, M., Gorelenkov, N. N.   +33 more
core   +1 more source

Unsupervised Anomaly Detection of Internal Reconnection Events in the VEST Spherical Tokamak

Plasma
Internal reconnection events (IREs) are rapid magnetohydrodynamic phenomena that play an important role in the confinement and stability of spherical tokamak plasmas.
Dae-Won Ok, Dae-Yeol Pyo, Hong-Sik Yun, Yong-Seok Hwang, Yong-Su Na   +4 more
doaj   +1 more source

Fast solvers for tokamak fluid models with PETSc

Computer Physics Communications
Multigrid (MG) is widely recognized as a highly effective solver for the model problem, the Laplacian, but textbook MG fails on most problems of interest. MG methods have been applied to complex, real-world applications with careful consideration of the physical model and discretization.
Mark F. Adams, Jin Chen, Benjamin Sturdevant   +2 more
openaire   +2 more sources

Experiments and SOLEDGE3X modeling of dissipative divertor and X-point Radiator regimes in WEST

X-Point Radiator (XPR) regimes have been obtained in WEST tokamak experiments with nitrogen seeding during the experimental campaigns of 2023 and 2024. These experiments showed the formation of a stable toroidal radiating ring near the X-point, similar ...
Fedorczak, N., Yang, H., Bernert, M., Lunt, T., Gunn, J. P., Cavalier, J., Marandet, Y., Tamain, P., Ciraolo, G., Svoboda, J., Rivals, N., Gaspar, J., Geulin, E., Guillemaut, C., Reimerdes, H., Morales, J., Bufferand, H., Nouailletas, R., Brida, D., Manas, P., Dimitrova, M.   +20 more
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Recent advances in Tokamak modelling

, 2016
In this paper we present some of our most recent Tokamak modelling work. We describe how basic physical principles may be used to derive a simple Tokamak model and then discuss how the number of states in this model may be reduced. A recent and major advance in this work has been the creation of system identified models of a Tokamak in Switzerland.
Limebeer, D, Wainwright, J, IEEE
openaire   +1 more source

Hybrid kinetic-MHD modeling of alpha-driven TAEs in the SPARC tokamak

Nuclear Fusion
As the magnetic confinement fusion community prepares for the next generation of fusion devices and burning plasmas, there is still a question of whether fast ions (FIs) will drive MHD instabilities, causing significant redistribution or even loss of FIs,
R.A. Tinguely, J. Gonzalez-Martin, Y. Todo   +2 more
doaj   +1 more source

SOLPS-ITER simulations to study the impact of aspect ratio on edge fueling neutrals in tokamaks

Nuclear Materials and Energy
In this paper, we examine the role of the aspect ratio on the neutral penetration and poloidal distribution for fixed magnetic geometry and plasma profiles using SOLPS-ITER. We start from an H-mode discharge from MAST (Kirk et al., 2012), with its aspect
Yi-Cheng Chuang, Saskia Mordijck, Richard Fitzpatrick, Richard Reksoatmodjo   +3 more
doaj   +1 more source

Implementation of an Iter-relevant Qp-based Current Limit Avoidance Algorithm in the Tcv Tokamak

The problem of avoiding saturation of the coil currents is critical in large tokamaks with superconducting coils like ITER. Indeed, if the current limits are reached, a loss of control of the plasma may lead to a major disruption.
Pironti, Alfredo, Pangione, Luigi, Devries, Peter, Frattolillo, Domenico, di Grazia, Luigi E., Tenaglia, Alessandro, Zabeo, Luca, Galperti, Cristian, Coda, Stefano, Mele, Adriano, Mattei, Massimiliano, De Tommasi, Gianmaria   +11 more
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Kinetic equilibrium prediction at TCV using RAPTOR and FBT

Nuclear Fusion
We present results from a new Kinetic-Equilibrium Prediction workflow and shot preparation for full Tokamak à Configuration Variable (TCV) discharges, by coupling predict-first RAPTOR transport simulations with FBT inverse equilibrium calculations ...
C.E. Contré, A. Merle, O. Sauter, S. Van Mulders, R. Coosemans, G. Durr-Legoupil-Nicoud, F. Felici, O. Février, C. Heiss, B. Labit, A. Pau, Y. Poels, C. Venturini, B. Vincent, the TCV Team, the EUROfusion Tokamak Exploitation Team   +15 more
doaj   +1 more source