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

doi:10.1088/0741-3335/49/11/012

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 journal › Article › Scientific › peer-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 language	English
Pages (from-to)	1931-1943
Journal	Plasma Physics and Controlled Fusion
Volume	49
Issue number	11
DOIs	https://doi.org/10.1088/0741-3335/49/11/012
Publication status	Published - 2007
MoE publication type	A1 Journal article-refereed

Keywords

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

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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, H. C. M., Mantica, P., Rantamäki, K., de Vries, P. C., Zastrow, K-D., & 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}",

year = "2007",

doi = "10.1088/0741-3335/49/11/012",

language = "English",

volume = "49",

pages = "1931--1943",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

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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 journal › Article › Scientific › peer-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 -