Results 11 to 20 of about 144 (106)
3D global impurity transport modeling with WallDYN and EMC3-Eirene
Nuclear Materials and Energy, 2018 The global impurity migration code WallDYN was coupled to the 3D scrape off layer plasma solver EMC3-Eirene in order to make WallDYN applicable to 3D, non-toroidally symmetric, geometries.
T Lunt
exaly +5 more sources
Stabilization of EMC3-EIRENE for detachment conditions and comparison to SOLPS-ITER
Nuclear Materials and Energy, 2019 Numerical access to cold divertor conditions in tokamaks with EMC3-EIRENE has been proven to be challenging, but is now possible for the first time after a linearization of the electron energy sink term from interaction with neutral gas.
H Frerichs, X Bonnin, Y Feng
exaly +5 more sources
Proposal of an alternative upper divertor in ASDEX Upgrade supported by EMC3-EIRENE simulations
Nuclear Materials and Energy, 2017 We discuss the benefits of installing a pair of in-vessel coils with currents |Ifx| ≲ 50 kAt in the upper divertor of ASDEX Upgrade (AUG) to study a series of ‘alternative’ divertor configurations, like the Snowflake (SF) and the X-divertor (XD), that ...
T Lunt, H Zohm, A Kallenbach
exaly +5 more sources
Nuclear Materials and Energy, 2021 ASDEX Upgrade is preparing a hardware modification of its upper divertor in order to study alternative divertor configurations, like the X-divertor (XD) and the snowflake divertor (SF), that are discussed as a possible solution for the power exhaust ...
T Lunt, D Brida, M Cavedon
exaly +5 more sources
Contributions To Plasma PhysicsAbstract The distribution pattern of the connection length in the divertor region of Heliotron J was calculated by the field line tracing method. A multifold layer structure, characterized by the range of connection length, was revealed to interpret the response of the transport of the lower‐charged impurity ions to the divertor structure.
F. Cai +18 more
exaly +5 more sources
Nuclear Materials and Energy, 2021 The heat flux deposition on the divertor targets with neon impurity injection has been investigated for EAST tokamak with the help of three-dimensional (3D) edge transport code EMC3-EIRENE.
S Y Dai, G Kawamura, Z S Yang
exaly +3 more sources
Nuclear Materials and EnergyPrevious simulations with the kinetic ion transport module of EMC3-EIRENE for Nitrogen seeding in a medium density ITER L-mode scenario showed that the currently simplified Coulomb collision model of EIRENE leads to a strongly overestimated confinement ...
D Harting, D Reiser, J Romazanov
exaly +3 more sources
A novel method for treating MAR in EMC3-Eirene, and first applications to W7-X
Nuclear FusionThis paper presents a novel ‘prediction-correction method’ for treating molecule-assisted recombination (MAR) in the three-dimensional (3D) boundary plasma transport code—EMC3-Eirene.
Y. Feng +3 more
doaj +4 more sources
Numerical accuracy and convergence with EMC3-EIRENE [PDF]
Plasma Science and Technology, 2020 The iterative Monte Carlo (MC) code EMC3-EIRENE is frequently used for plasma edge simulations in 3D applications. So far, a quantitative evaluation of the numerical quality of the code results remains an open issue. In this paper, we demonstrate a framework for the practical assessment of accuracy and convergence with EMC3-EIRENE. Moreover, we provide
Ghoos, Kristel +4 more
openaire +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 +3 more
wiley +1 more source