Modelling of carbon transport in the outer divertor plasma of ASDEX upgrade

ASDEX Upgrade Team

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

Carbon transport in the ASDEX Upgrade outer divertor plasma is investigated in numerical simulations. The SOLPS5.0 code package is used to model the scrape‐off layer plasma in a set of repeated lower‐single‐null L‐mode discharges. Special emphasis is given to replicate the plasma conditions measured in the full tungsten, vertical outer target of ASDEX Upgrade, and solutions with and without the effect of drifts are presented. First ERO simulations of hydrocarbon transport in a SOLPS plasma background including drifts are carried out, and significantly closer match to the experimental 13C deposition pattern is obtained than with the solution without drifts. The 2D divertor electric field predicted by SOLPS is applied to the ERO modelling, and it is observed to result in a poloidal hydrocarbon drift that agrees well with the experiment. An increased carbon deposition efficiency, particularly upstream from the source, is obtained in the normal ASDEX Upgrade field configuration.
Original languageEnglish
Pages (from-to)439-444
Number of pages6
JournalContributions to Plasma Physics
Volume50
Issue number3-5
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed
Event12th International Workshop on Plasma Edge Theory in Fusion Devices, PET‐12 - Rostov, Russian Federation
Duration: 2 Sep 20094 Sep 2009

Fingerprint

carbon
hydrocarbons
plasma layers
upstream
tungsten
simulation
electric fields
configurations

Keywords

  • Carbon
  • impurity transport
  • divertor
  • SOLPS
  • ERO
  • drifts
  • electric field

Cite this

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title = "Modelling of carbon transport in the outer divertor plasma of ASDEX upgrade",
abstract = "Carbon transport in the ASDEX Upgrade outer divertor plasma is investigated in numerical simulations. The SOLPS5.0 code package is used to model the scrape‐off layer plasma in a set of repeated lower‐single‐null L‐mode discharges. Special emphasis is given to replicate the plasma conditions measured in the full tungsten, vertical outer target of ASDEX Upgrade, and solutions with and without the effect of drifts are presented. First ERO simulations of hydrocarbon transport in a SOLPS plasma background including drifts are carried out, and significantly closer match to the experimental 13C deposition pattern is obtained than with the solution without drifts. The 2D divertor electric field predicted by SOLPS is applied to the ERO modelling, and it is observed to result in a poloidal hydrocarbon drift that agrees well with the experiment. An increased carbon deposition efficiency, particularly upstream from the source, is obtained in the normal ASDEX Upgrade field configuration.",
keywords = "Carbon, impurity transport, divertor, SOLPS, ERO, drifts, electric field",
author = "L. Aho-Mantila and M. Wischmeier and Markus Airila and Chankin, {A. V.} and Coster, {D. P.} and Ch. Fuchs and M. Groth and A. Kirschner and K. Krieger and Muller, {H. W.} and E. Wolfrum and {ASDEX Upgrade Team}",
note = "LIS: RoMeo white CO:K Helsinki University of Technology, Association Euratom-TEKES, Espoo, Finland CO:U Max-Planck Institut f{\"u}r Plasmaphysik, Garching, Germany CO:U Forschungszentrum J{\"u}lich, Trilateral Euregio Cluster, J{\"u}lich, Germany CA2: TK202 CA: Cluster7 ISI: Physics, Fluids & Plasmas",
year = "2010",
doi = "10.1002/ctpp.201010070",
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pages = "439--444",
journal = "Contributions to Plasma Physics",
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}

Modelling of carbon transport in the outer divertor plasma of ASDEX upgrade. / ASDEX Upgrade Team.

In: Contributions to Plasma Physics, Vol. 50, No. 3-5, 2010, p. 439-444.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Modelling of carbon transport in the outer divertor plasma of ASDEX upgrade

AU - Aho-Mantila, L.

AU - Wischmeier, M.

AU - Airila, Markus

AU - Chankin, A. V.

AU - Coster, D. P.

AU - Fuchs, Ch.

AU - Groth, M.

AU - Kirschner, A.

AU - Krieger, K.

AU - Muller, H. W.

AU - Wolfrum, E.

AU - ASDEX Upgrade Team

N1 - LIS: RoMeo white CO:K Helsinki University of Technology, Association Euratom-TEKES, Espoo, Finland CO:U Max-Planck Institut für Plasmaphysik, Garching, Germany CO:U Forschungszentrum Jülich, Trilateral Euregio Cluster, Jülich, Germany CA2: TK202 CA: Cluster7 ISI: Physics, Fluids & Plasmas

PY - 2010

Y1 - 2010

N2 - Carbon transport in the ASDEX Upgrade outer divertor plasma is investigated in numerical simulations. The SOLPS5.0 code package is used to model the scrape‐off layer plasma in a set of repeated lower‐single‐null L‐mode discharges. Special emphasis is given to replicate the plasma conditions measured in the full tungsten, vertical outer target of ASDEX Upgrade, and solutions with and without the effect of drifts are presented. First ERO simulations of hydrocarbon transport in a SOLPS plasma background including drifts are carried out, and significantly closer match to the experimental 13C deposition pattern is obtained than with the solution without drifts. The 2D divertor electric field predicted by SOLPS is applied to the ERO modelling, and it is observed to result in a poloidal hydrocarbon drift that agrees well with the experiment. An increased carbon deposition efficiency, particularly upstream from the source, is obtained in the normal ASDEX Upgrade field configuration.

AB - Carbon transport in the ASDEX Upgrade outer divertor plasma is investigated in numerical simulations. The SOLPS5.0 code package is used to model the scrape‐off layer plasma in a set of repeated lower‐single‐null L‐mode discharges. Special emphasis is given to replicate the plasma conditions measured in the full tungsten, vertical outer target of ASDEX Upgrade, and solutions with and without the effect of drifts are presented. First ERO simulations of hydrocarbon transport in a SOLPS plasma background including drifts are carried out, and significantly closer match to the experimental 13C deposition pattern is obtained than with the solution without drifts. The 2D divertor electric field predicted by SOLPS is applied to the ERO modelling, and it is observed to result in a poloidal hydrocarbon drift that agrees well with the experiment. An increased carbon deposition efficiency, particularly upstream from the source, is obtained in the normal ASDEX Upgrade field configuration.

KW - Carbon

KW - impurity transport

KW - divertor

KW - SOLPS

KW - ERO

KW - drifts

KW - electric field

U2 - 10.1002/ctpp.201010070

DO - 10.1002/ctpp.201010070

M3 - Article

VL - 50

SP - 439

EP - 444

JO - Contributions to Plasma Physics

JF - Contributions to Plasma Physics

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