Results 11 to 20 of about 2,743 (148)

First Application of 3D Peripheral Plasma Transport Code EMC3-EIRENE to Heliotron J [PDF]

Plasma and Fusion Research, 2019
0000-0002-5730-4158The 3D peripheral plasma and neutral transport code, EMC3-EIRENE was applied to the Heliotron J with a wide and flexible controllability of magnetic configuration.
Shigeru Konoshima, Kazunobu Nagasaki, Yasuhiro Suzuki   +2 more
exaly   +9 more sources

Impact of spatially varying transport coefficients in EMC3-Eirene simulations of W7-X and assessment of drifts [PDF]

Nuclear Fusion
Modelling the scrape-off layer of a stellarator is challenging due to the complex magnetic 3D geometry. The here presented study analyses simulations of the scrape-off layer (SOL) of the stellarator Wendelstein 7-X (W7-X) using spatially varying ...
David Bold, Felix Reimold, Holger Niemann, Yu Gao, Marcin Jakubowski, Carsten Killer, Victoria R. Winters, Nassim Maaziz, the W7-X Team   +8 more
doaj   +8 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

First EMC3-Eirene simulations of the TCV snowflake divertor [PDF]

Plasma Physics and Controlled Fusion, 2014
One of the approaches to solve the heat load problem in a divertor tokamak is the so called 'snowflake' (SF) configuration, a magnetic equilibrium with two nearby x-points and two additional divertor legs. Here we report on the first EMC3-Eirene simulations of plasma-and neutral particle transport in the scrape-off layer of a series of TCV SF ...
Lunt, T., Canal, G. P., Feng, Y., Reimerdes, H., Duval, B. P., Labit, B., Vijvers, W.A.J., Coster, D., Lackner, K., Wischmeier, M.   +9 more
openaire   +3 more sources

EMC3-Eirene simulations of the tungsten injection experiments in Tore Supra [PDF]

Journal of Nuclear Materials, 2013
Abstract We report on the first full 3D EMC3-Eirene simulations of the bulk plasma, neutral gas and W impurity transport in Tore Supra (TS). Three configurations are addressed: (A) the high field side-, (B) bottom- and (C) low field side limited case and compared to Mach probe measurements at the top of the device.
Lunt, T., Kocan, M., Gunn, J., Feng, Y., Meyer, O.   +4 more
openaire   +3 more sources

Implementation of the 3D edge plasma code EMC3-EIRENE on NSTX [PDF]

Nuclear Fusion, 2012
The 3D edge transport code EMC3-EIRENE has been applied for the first time to the NSTX spherical tokamak. A new disconnected double null grid has been developed to allow the simulation of plasma where the radial separation of the inner and outer separatrix is less than characteristic widths (e.g. heat flux width) at the midplane.
Lore, J., Canik, J., Feng, Y., Ahn, J., Maingi, R., Soukhanovskii, V.   +5 more
openaire   +3 more sources

Plasma response impact on RMP divertor footprint modeling for KSTAR

Nuclear Materials and Energy, 2023
The striation pattern of heat loads on the divertor targets is determined by the plasma response to external resonant magnetic perturbations (RMPs) applied for suppression of edge localized modes (ELMs).
H. Frerichs, J. Van Blarcum, S.M. Yang, J-K. Park, N.C. Logan, Y. Feng, O. Schmitz   +6 more
doaj   +1 more source

Integration of kinetic ions in a three‐dimensional Monte‐Carlo neutral transport code

Contributions to Plasma Physics, Volume 60, Issue 5-6, June-July 2020., 2020
Abstract Charged particles of species different from the major constituents of a plasma might not reach local thermodynamic equilibrium during their lifespan. Such low collisional ions render the often‐used fluid description, assuming Maxwellian velocity distribution, as insufficient. Hence, kinetic treatment of such minorities becomes inevitable.
Friedrich Schluck
wiley   +1 more source

Validating the 3D egde code EMC3-EIRENE against 2D simulations with EDGE2D-EIRENE for JET single null configurations [PDF]

, 2011
The 3D edge plasma transport code EMC3-EIRENE [1] was successfully adapted to the single null configuration of JET. A test bed with the well established 2D edge plasma code EDGE2D-EIRENE [2,3] was prepared to check the adaptation of the EMC3-EIRENE code ...
Reiter, D., H. Frerichs, D. Harting, Harting, D., Y. Feng, JET-EFDA Contributors, S. Wiesen, Börner, P., D. Reiter, Frerichs, H., Feng, Y., Wiesen, S., P. Börner   +12 more
core   +1 more source

Experimental observations and modelling of radiation asymmetries during N2 seeding in LHD

Nuclear Materials and Energy, 2021
N2 gas has been seeded in the Large Helical Device (LHD) to reduce the divertor heat load through enhanced radiation. Radiation is observed by two imaging bolometers, viewing the same poloidal cross-section from top and bottom ports, at a location which ...
B.J. Peterson, G. Kawamura, P.L. van de Giessen, K. Mukai, H. Tanaka, R. Sano, S.N. Pandya, S.Y. Dai, S. Masuzaki, T. Akiyama, M. Kobayashi, M. Goto, G. Motojima, R. Sakamoto, N. Ohno, T. Morisaki, J. Miyazawa   +16 more
doaj   +1 more source