Predictive simulations of toroidal momentum transport at JET

A. Eriksson, H. Nordman, P. Strand, J. Weiland, Tuomas Tala, E. Asp, G. Corrigan, C. Giroud, M. de Greef, I. Jenkins, H.C.M. Knoops, P. Mantica, Karin Rantamäki, P.C. de Vries, K.-D. Zastrow, and JET EFDA Contributors

    Research output: Contribution to journalArticleScientificpeer-review

    13 Citations (Scopus)

    Abstract

    A new version of the Weiland model has been used in predictive JETTO simulations of toroidal rotation. The model includes a self-consistent calculation of the toroidal momentum diffusivity (χphgr) which contains both diagonal and non-diagonal (pinch) contributions to the momentum flux. Predictive transport simulations of JET H-mode, L-mode and hybrid discharges are presented.

    It is shown that experimental temperatures and toroidal velocity were well reproduced by the simulations. The model predicts the ion heat diffusivity (χi) to be larger than the momentum diffusivity and it gives Prandtl numbers (Pr = χphgr/χi) between 0.1 and 1. The Prandtl numbers are often, depending on the plasma conditions, predicted to be significantly smaller than unity. This is in accordance with experimental findings.
    Original languageEnglish
    Pages (from-to)1931-1943
    JournalPlasma Physics and Controlled Fusion
    Volume49
    Issue number11
    DOIs
    Publication statusPublished - 2007
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    diffusivity
    Momentum
    Prandtl number
    momentum
    simulation
    unity
    Fluxes
    Plasmas
    heat
    Ions
    ions
    Temperature
    temperature
    Hot Temperature

    Keywords

    • JET
    • Tokamak
    • plasma toroidal confinement
    • toroidal momentum transport
    • ITER
    • fusion energy
    • fusion reactors
    • plasma

    Cite this

    Eriksson, A., Nordman, H., Strand, P., Weiland, J., Tala, T., Asp, E., ... Contributors, A. JET. EFDA. (2007). Predictive simulations of toroidal momentum transport at JET. Plasma Physics and Controlled Fusion, 49(11), 1931-1943. https://doi.org/10.1088/0741-3335/49/11/012
    Eriksson, A. ; Nordman, H. ; Strand, P. ; Weiland, J. ; Tala, Tuomas ; Asp, E. ; Corrigan, G. ; Giroud, C. ; de Greef, M. ; Jenkins, I. ; Knoops, H.C.M. ; Mantica, P. ; Rantamäki, Karin ; de Vries, P.C. ; Zastrow, K.-D. ; Contributors, and JET EFDA. / Predictive simulations of toroidal momentum transport at JET. In: Plasma Physics and Controlled Fusion. 2007 ; Vol. 49, No. 11. pp. 1931-1943.
    @article{57cfcb7ddd0c4dbaa9d9baff4d5fb42b,
    title = "Predictive simulations of toroidal momentum transport at JET",
    abstract = "A new version of the Weiland model has been used in predictive JETTO simulations of toroidal rotation. The model includes a self-consistent calculation of the toroidal momentum diffusivity (χphgr) which contains both diagonal and non-diagonal (pinch) contributions to the momentum flux. Predictive transport simulations of JET H-mode, L-mode and hybrid discharges are presented.It is shown that experimental temperatures and toroidal velocity were well reproduced by the simulations. The model predicts the ion heat diffusivity (χi) to be larger than the momentum diffusivity and it gives Prandtl numbers (Pr = χphgr/χi) between 0.1 and 1. The Prandtl numbers are often, depending on the plasma conditions, predicted to be significantly smaller than unity. This is in accordance with experimental findings.",
    keywords = "JET, Tokamak, plasma toroidal confinement, toroidal momentum transport, ITER, fusion energy, fusion reactors, plasma",
    author = "A. Eriksson and H. Nordman and P. Strand and J. Weiland and Tuomas Tala and E. Asp and G. Corrigan and C. Giroud and {de Greef}, M. and I. Jenkins and H.C.M. Knoops and P. Mantica and Karin Rantam{\"a}ki and {de Vries}, P.C. and K.-D. Zastrow and Contributors, {and JET EFDA}",
    year = "2007",
    doi = "10.1088/0741-3335/49/11/012",
    language = "English",
    volume = "49",
    pages = "1931--1943",
    journal = "Plasma Physics and Controlled Fusion",
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    Eriksson, A, Nordman, H, Strand, P, Weiland, J, Tala, T, Asp, E, Corrigan, G, Giroud, C, de Greef, M, Jenkins, I, Knoops, HCM, Mantica, P, Rantamäki, K, de Vries, PC, Zastrow, K-D & Contributors, AJETEFDA 2007, 'Predictive simulations of toroidal momentum transport at JET', Plasma Physics and Controlled Fusion, vol. 49, no. 11, pp. 1931-1943. https://doi.org/10.1088/0741-3335/49/11/012

    Predictive simulations of toroidal momentum transport at JET. / Eriksson, A.; Nordman, H.; Strand, P.; Weiland, J.; Tala, Tuomas; Asp, E.; Corrigan, G.; Giroud, C.; de Greef, M.; Jenkins, I.; Knoops, H.C.M.; Mantica, P.; Rantamäki, Karin; de Vries, P.C.; Zastrow, K.-D.; Contributors, and JET EFDA.

    In: Plasma Physics and Controlled Fusion, Vol. 49, No. 11, 2007, p. 1931-1943.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Predictive simulations of toroidal momentum transport at JET

    AU - Eriksson, A.

    AU - Nordman, H.

    AU - Strand, P.

    AU - Weiland, J.

    AU - Tala, Tuomas

    AU - Asp, E.

    AU - Corrigan, G.

    AU - Giroud, C.

    AU - de Greef, M.

    AU - Jenkins, I.

    AU - Knoops, H.C.M.

    AU - Mantica, P.

    AU - Rantamäki, Karin

    AU - de Vries, P.C.

    AU - Zastrow, K.-D.

    AU - Contributors, and JET EFDA

    PY - 2007

    Y1 - 2007

    N2 - A new version of the Weiland model has been used in predictive JETTO simulations of toroidal rotation. The model includes a self-consistent calculation of the toroidal momentum diffusivity (χphgr) which contains both diagonal and non-diagonal (pinch) contributions to the momentum flux. Predictive transport simulations of JET H-mode, L-mode and hybrid discharges are presented.It is shown that experimental temperatures and toroidal velocity were well reproduced by the simulations. The model predicts the ion heat diffusivity (χi) to be larger than the momentum diffusivity and it gives Prandtl numbers (Pr = χphgr/χi) between 0.1 and 1. The Prandtl numbers are often, depending on the plasma conditions, predicted to be significantly smaller than unity. This is in accordance with experimental findings.

    AB - A new version of the Weiland model has been used in predictive JETTO simulations of toroidal rotation. The model includes a self-consistent calculation of the toroidal momentum diffusivity (χphgr) which contains both diagonal and non-diagonal (pinch) contributions to the momentum flux. Predictive transport simulations of JET H-mode, L-mode and hybrid discharges are presented.It is shown that experimental temperatures and toroidal velocity were well reproduced by the simulations. The model predicts the ion heat diffusivity (χi) to be larger than the momentum diffusivity and it gives Prandtl numbers (Pr = χphgr/χi) between 0.1 and 1. The Prandtl numbers are often, depending on the plasma conditions, predicted to be significantly smaller than unity. This is in accordance with experimental findings.

    KW - JET

    KW - Tokamak

    KW - plasma toroidal confinement

    KW - toroidal momentum transport

    KW - ITER

    KW - fusion energy

    KW - fusion reactors

    KW - plasma

    U2 - 10.1088/0741-3335/49/11/012

    DO - 10.1088/0741-3335/49/11/012

    M3 - Article

    VL - 49

    SP - 1931

    EP - 1943

    JO - Plasma Physics and Controlled Fusion

    JF - Plasma Physics and Controlled Fusion

    SN - 0741-3335

    IS - 11

    ER -