Results 21 to 30 of about 31,680 (149)

On the role of finite grid extent in SOLPS-ITER edge plasma simulations for JET H-mode discharges with metallic wall [PDF]

Nuclear Materials and Energy, 2018
The impact of the finite grid size in SOLPS-ITER edge plasma simulations is assessed for JET H-mode discharges with a metal wall. For a semi-horizontal divertor configuration it is shown that the separatrix density is at least 30% higher when a narrow ...
S. Wiesen, S. Brezinsek, X. Bonnin, E. Delabie, L. Frassinetti, M. Groth, C. Guillemaut, J. Harrison, D. Harting, S. Henderson, A. Huber, U. Kruezi, R.A. Pitts, M. Wischmeier   +13 more
doaj   +3 more sources

Evaluation of ITER divertor shunts as a synthetic diagnostic for detachment control [PDF]

Nuclear Fusion, 2023
Reliable diagnostics that measure the detached state of the ITER divertor plasma will be necessary to control heat flux to the divertor targets during steady state, burning plasma operation. This paper conducts an initial exploration into the feasibility
C.A. Orrico, T. Ravensbergen, R.A. Pitts, X. Bonnin, E. Kaveeva, J.S. Park, V. Rozhansky, I. Senichenkov, C. Watts, M. de Baar   +9 more
doaj   +4 more sources

SOLPS-ITER predictive simulations of the impact of ion-molecule elastic collisions on strongly detached MAST-U Super-X divertor conditions [PDF]

, 2023
The role of ion-molecule ( D+−D2 ) elastic collisions in strongly detached divertor conditions has been studied in the MAST-U Super-X configuration using SOLPS-ITER.
O. Myatra, D. Moulton, B. Dudson, B. Lipschultz, S. Newton, Kevin Verhaegh, A. Fil   +6 more
semanticscholar   +2 more sources

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   +2 more sources

First SOLPS-ITER predictions of the impact of cross-field drifts on divertor and scrape-off layer conditions in double-null configuration of STEP [PDF]

Nuclear Fusion
Introduction of cross-field drifts in SOLPS-ITER simulations of connected double-null plasmas in STEP with the ion ∇B×B drift towards the upper divertors was found to enhance the detachment of the inner divertors with decreased target densities and ion ...
J. Karhunen, S. Henderson, A. Järvinen, D. Moulton, Sarah L Newton, Ryoko Tatsumi Osawa   +5 more
semanticscholar   +2 more sources

On the role of atomic momentum and molecules in self-consistent 1D scrape-off layer simulation of MAST-U, using DIV1D [PDF]

Nuclear Fusion
In this paper, the 1D physics-based dynamic scrape-off-layer (SOL) model DIV1D is extended to include molecular interactions and the effects of finite atomic flow velocity parallel to the magnetic field lines.
S.P. Kobussen, G.L. Derks, E. Westerhof, D. Moulton, S. Wiesen, K. Verhaegh   +5 more
doaj   +2 more sources

Power balance and divertor asymmetries in the Super-X divertors of MAST-U using SOLPS-ITER

Nuclear Fusion
Spherical tokamaks (STs) present unique challenges and opportunities in the area of particle and power exhaust, intensified due to their more compact sizes.
I. Paradela Perez, B. Lomanowski, J. Lore, J. Lovell, David Moulton   +4 more
semanticscholar   +2 more sources

Error‐based grid adaptation methods for plasma edge simulations with SOLPS‐ITER [PDF]

Contributions to Plasma Physics
Only recently, plasma edge simulations up to the wall have been enabled with SOLPS‐ITER. This requires dedicated gridding techniques to reconcile grid alignment with the magnetic field and refinement toward the wall as grid quality is primordial to ...
Nathan Vervloesem, W. Dekeyser, S. Kerkhof, Martine Baelmans   +3 more
semanticscholar   +2 more sources

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   +2 more sources

SOLPS-ITER numerical simulations of ITER-scale Snowflake divertors: low-field-side SF−/SF+ and high-field-side SF−/SF+ configurations [PDF]

Nuclear Fusion
Using the edge plasma code package SOLPS-ITER, we study the four types of Snowflake (SF) divertors for an ITER-size tokamak, with toroidal magnetic field BT∼ 5 T, major radius R ∼ 5 m and plasma current Ip ∼ 10 MA.
Haosheng Wu, F. Subba, M. Wigram, O. Pan, Rosa Lo Frano, Andrea Pucciarelli, Roberto Zanino   +6 more
semanticscholar   +2 more sources