Abstract
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 | |
| Publication status | Published - 2007 |
| MoE publication type | A1 Journal article-refereed |
Fingerprint
Keywords
- JET
- Tokamak
- plasma toroidal confinement
- toroidal momentum transport
- ITER
- fusion energy
- fusion reactors
- plasma
Cite this
}
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 -