Results 41 to 50 of about 31,680 (149)

Towards assessment of plasma edge transport in Neon seeded plasmas in disconnected double null configuration in EAST with SOLPS-ITER

Nuclear Materials and Energy, 2021
Energy dissipation in the plasma edge is key for future tokamaks. The potential of neon as radiating seeding species in disconnected double null (DDN) configuration is assessed in EAST discharges in high confinement mode (H-mode).
D. Boeyaert, S. Wiesen, M. Wischmeier, W. Dekeyser, S. Carli, L. Wang, F. Ding, K. Li, Y. Liang, M. Baelmans   +9 more
doaj   +2 more sources

Impact of gas injection location and divertor surface material on ITER fusion power operation phase divertor performance assessed with SOLPS-ITER

Nuclear Fusion
The ITER divertor design and performance assessment, primarily based on the SOLPS-4.3 burning plasma database (Pitts R. et al 2019 Nucl. Mater. Energy   20 100696), assumes the use of beryllium (Be) as the divertor surface material and the injection of ...
Jae-Sun Park, Xavier Bonnin, Richard Pitts, Jeremy Lore   +3 more
doaj   +2 more sources

A novel understanding of the role of plasma-molecular kinetics on divertor power exhaust [PDF]

Nuclear Fusion
During detachment, a buffer of neutral atoms and molecules builds up between the target and the ionising plasma. Collisions between the plasma and the molecules play an important role in the detachment process.
N. Osborne, K. Verhaegh, D. Moulton, S. Mijin, H. Reimerdes, P. Ryan, N. Lonigro, R. Osawa, K. Murray, S. Kobussen, Y. Damizia, A. Perek, C. Theiler, R. Ducker, D. Mykytchuk, the Eurofusion Tokamak Exploitation Team, the MAST-U Team, the TCV Team   +17 more
doaj   +2 more sources

Cross-code comparison of the edge codes SOLPS-ITER, SOLEDGE2D and UEDGE in modelling a low-power scenario in the DTT [PDF]

, 2022
As reactor-level nuclear fusion experiments are approaching, a solution to the power exhaust issue in future fusion reactors is still missing. The maximum steady-state heat load that can be exhausted by the present technology is around 10 MW m-2 ...
Carati C., De Marchi E., Greenwald M., Innocente P., Labombard B., Meineri C., Moscheni M., Subba F., Wigram M., Wu H., Zanino R.   +10 more
core   +1 more source

Combination of micro–macro and spatially hybrid fluid‐kinetic approach for hydrogenic plasma edge neutrals

Contributions to Plasma Physics, Volume 62, Issue 5-6, June‐July 2022., 2022
Abstract A new hybrid fluid‐kinetic approach for the hydrogenic neutrals (atoms and molecules) in the plasma edge is presented. The hybrid approach combines a fully kinetic model for the atoms in the low‐collisional regions near the vessel wall, and for the molecules in the whole plasma edge domain, with a micro–macro approach for atoms originating ...
Niels Horsten, Mathias Groth, Wouter Dekeyser, Wim Van Uytven, Stefano Carli, JET Contributors   +5 more
wiley   +1 more source

SOLPS-ITER numerical evaluation about the effect of drifts in a divertor configuration of ASDEX-Upgrade and a limiter configuration of J-TEXT [PDF]

, 2023
We performed SOLPS-ITER numerical simulation on the J-TEXT limiter tokamak with the activation of drifts. The simulation results are compared with ASDEX Upgrade divertor simulation results to evaluate the effect of drifts. Through a gas puffing rate scan,
Shi, P., Subba, F., Sun, H., Wischmeier, M. , Wu, H., Zanino, R.   +5 more
core   +5 more sources

Impact of vibrationally resolved H2 on particle balance in Eirene simulations

Contributions to Plasma Physics, Volume 62, Issue 5-6, June‐July 2022., 2022
Abstract To evaluate the impact of transport of metastable, vibrationally excited states of the hydrogen molecule in dense and cold plasmas each vibrational state must be simulated as an individual species. Eirene neutral gas simulations of a one‐dimensional flux‐tube using a metastable‐resolved model indicate a 30–50% decrease in the effective ...
Andreas Holm, Dirk Wünderlich, Mathias Groth, Petra Börner   +3 more
wiley   +1 more source

SOLPS-ITER modeling of Ar and N seeded discharges in ASDEX upgrade and ITER

Nuclear Materials and Energy, 2023
In this paper SOLPS-ITER simulations of Ar and N seeded discharges are presented for H-mode conditions on ASDEX Upgrade and for burning plasmas on ITER. These discharges are additionally compared with Ne seeded cases for both tokamaks. It is demonstrated
I.Yu. Senichenkov, A.G. Poletaeva, E.G. Kaveeva, I.Yu. Veselova, V.A. Rozhansky, D. Coster, X. Bonnin, R.A. Pitts   +7 more
doaj   +1 more source

The role of edge fueling in determining the pedestal density in high neutral opacity Alcator C-Mod experiments

Nuclear Materials and Energy, 2021
SOLPS-ITER modeling of EDA H-mode experiments on Alcator C-Mod find that the electron density pedestal structure is unaffected by increased gas fueling when approaching ITER-like opaqueness conditions.
R. Reksoatmodjo, S. Mordijck, J.W. Hughes, J.D. Lore, X. Bonnin   +4 more
doaj   +1 more source

Quantification of the uncertainty arising from atomic physics in edge plasmas

Nuclear Materials and Energy, 2022
It is clear that atomic physics rates are important for understanding the edge plasma — but how important is the uncertainty in these rates in contributing to the uncertainty in simulations of the edge plasma?Standard Uncertainty Quantification (UQ ...
D.P. Coster
doaj   +1 more source