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

    @article{3fb1c41dd8a846baa5577695ecb19561,
    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",
    language = "English",
    volume = "50",
    pages = "439--444",
    journal = "Contributions to Plasma Physics",
    issn = "0863-1042",
    publisher = "Wiley-VCH Verlag",
    number = "3-5",

    }

    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

    SN - 0863-1042

    IS - 3-5

    ER -