Results 21 to 30 of about 249 (122)

Impact of the improved parallel kinetic coefficients on the helium and neon transport in SOLPS‐ITER for ITER

Contributions to Plasma Physics, Volume 62, Issue 5-6, June‐July 2022., 2022
Abstract New Grad–Zhdanov module is implemented in the SOLPS‐ITER code and applied to ITER impurity transport simulations. Significant difference appears in the helium transport due to improved parallel kinetic coefficients. As a result, 30% decrease of the separatrix‐averaged helium relative concentration is observed for the constant helium source and
S.O. Makarov, D.P. Coster, V.A. Rozhansky, S.P. Voskoboynikov, E.G. Kaveeva, I.Y. Senichenkov, A.A. Stepanenko, V.M. Zhdanov, X. Bonnin   +8 more
wiley   +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

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 simulations of the TCV divertor upgrade [PDF]

Plasma Physics and Controlled Fusion, 2019
The effect of the upcoming TCV divertor upgrade on the distribution of neutrals and the onset of detachment is studied using 2D transport code simulations. The divertor upgrade is centered around the installation of a gas baffle to form a divertor chamber of variable closure.
Wensing, M., Duval, B.P., Février, O., Fil, A., Galassi, D., Havlíčková, E., Perek, A., Reimerdes, H., Theiler, C., Verhaegh, K., Wischmeier, M., EUROfusion MST1 Team,, TCV team,   +12 more
openaire   +2 more sources

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

Speed-up of SOLPS-ITER code for tokamak edge modeling [PDF]

Nuclear Fusion, 2018
Account of drifts and currents dramatically decreases the accessible time step for the integration of time dependent equations of SOLPS-ITER code for edge modeling. Running the code with sophisticated EIRENE Monte-Carlo model for neutrals and large number of fluid equations for multiple ion species makes the computation time unacceptably long.
Kaveeva, E., Rozhansky, V., Senichenkov, I., Veselova, I., Voskoboynikov, S., Bonnin, X., Coster, D.   +6 more
openaire   +4 more sources

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

Drifts, currents, and power scrape-off width in SOLPS-ITER modeling of DIII-D

Nuclear Materials and Energy, 2017
The effects of drifts and associated flows and currents on the width of the parallel heat flux channel (λq) in the tokamak scrape-off layer (SOL) are analyzed using the SOLPS-ITER 2D fluid transport code.
E.T. Meier, R.J. Goldston, E.G. Kaveeva, M.A. Makowski, S. Mordijck, V.A. Rozhansky, I.Yu. Senichenkov, S.P. Voskoboynikov   +7 more
doaj   +1 more source

SOLPS-ITER simulation of an X-point radiator in TCV

, 2023
SOLPS-ITER simulation is performed to reproduce the X-point radiator recently observed in nitrogen-seeded TCV experiments, which is a scenario that may be favorable to solve the power exhaust problems in future fusion devices. The simulations reveal the transition from the detached regime without XPR to the XPR regime, when increasing the nitrogen ...
Sun, G., Pan, O., Bernert, M., Carpita, M., Duval, B. P., Février, O., Koenders, J. T. W., Reimerdes, H., Theiler, C., Wiesen, S.   +9 more
openaire   +2 more sources

SOLPS-ITER modelling of ITER edge plasma with drifts and currents [PDF]

Nuclear Fusion, 2020
Using the new version of the SOLPS plasma boundary code package, SOLPS-ITER, this paper presents the first ever simulations of the ITER burning baseline H-mode edge plasma with drifts and currents activated. Neon (Ne) seeded discharges for divertor power dissipation are considered. The results for divertor and scrape-off layer (SOL) parameters with and
E. Kaveeva, V. Rozhansky, I. Senichenkov, E. Sytova, I. Veselova, S. Voskoboynikov, X. Bonnin, R.A. Pitts, A.S. Kukushkin, S. Wiesen, D. Coster   +10 more
openaire   +2 more sources