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.
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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}",
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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 -