Results 21 to 30 of about 66,536 (109)

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

Novel SOLPS-ITER simulations of X-point target and snowflake divertors [PDF]

, 2023
The design and understanding of alternative divertor configurations may be crucial for achieving acceptable steady-state heat and particle material loads for magnetic confinement fusion reactors.
Kuang, A. Q., Lipschultz, B., Umansky, M., Bonnin, X., Canik, J., Ballinger, S., Cowley, C., Moulton, D., Lore, J. D., Wigram, M.   +9 more
core   +2 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

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

First Monte‐Carlo modelling of global beryllium migration in ITER using ERO2.0

Contributions to Plasma Physics, Volume 60, Issue 5-6, June-July 2020., 2020
Abstract ERO2.0 is a recently developed Monte‐Carlo code for modelling global erosion and redeposition in fusion devices. We report here on the code's application to ITER for studying the erosion of the beryllium (Be) first wall armour under burning plasma steady state diverted conditions.
Juri Romazanov, Sebastijan Brezinsek, Andreas Kirschner, Dmitriy Borodin, Alina Eksaeva, Richard A. Pitts, Steven W. Lisgo, Himank Anand, Evgeny Veshchev, Vlad S. Neverov, Alexander B. Kukushkin, Andrey G. Alekseev, Christian Linsmeier   +12 more
wiley   +1 more source

Impact of drifts in the ASDEX upgrade upper open divertor using SOLPS‐ITER

Contributions to Plasma Physics, Volume 60, Issue 5-6, June-July 2020., 2020
Abstract SOLPS‐ITER L‐mode‐like simulations with the full set of currents and drift velocities activated, and fluid neutrals have been carried out to interpret experimental results obtained in AUG. Drifts are critical to quantitatively reproduce the experimental results; however, simulations without drifts can also reproduce some trends qualitatively ...
I. Paradela Pérez, M. Groth, M. Wischmeier, D. Coster, D. Brida, P. David, D. Silvagni, M. Faitsch, the ASDEX‐Upgrade Team, the EUROfusion MST1 Team   +9 more
wiley   +1 more source

Exploring the edge operating space of fusion reactors using reduced physics models

Nuclear Materials and Energy, 2017
Reduced physics models within SOLPS have been used to explore the edge operating space of fusion reactors by building a database of simulations for various input powers and various combinations of impurity puffing.
D.P. Coster
doaj   +1 more source

Coupled simulations with SOLPS-ITER and B2.5-Eunomia for detachment experiments in Magnum-PSI

, 2022
Replication package for manuscript: Coupled simulations with SOLPS-ITER and B2.5-Eunomia for detachment experiments in Magnum-PSI Submitted to PPCF on 2022-10 ...
H. J. de Blank, Chandra, R., R. Chandra, H.J. de Blank, Westerhof, E., J. Gonzalez, de Blank, H.J., Gonzalez, J., E. Westerhof   +8 more
core   +1 more source

A reduced model for the ITER divertor based on SOLPS solutions for ITER Q = 10 baseline conditions: B. A reduced model based on reversed-direction two point modeling

Nuclear Fusion, 2022
Edge codes such as SOLPS coupled to neutral codes such as EIRENE have become so comprehensive and sophisticated that they now constitute, in effect, ‘code-experiments’ that, as for actual experiments, can benefit from interpretation using simple models ...
P.C. Stangeby, J.D. Lore, R.A. Pitts, J.M. Canik, X. Bonnin   +4 more
doaj   +1 more source