Validation of EDGDE2D-EIRENE predicted 2D distributions of electron temperature and density against divertor Thomson scattering measurements in the low-field side divertor leg in DIII-D

被引：3

作者：

Groth, M. ^{[1
]}

McLean, A. G. ^{[2
]}

Meyer, W. H. ^{[2
]}

Leonard, A. W. ^{[3
]}

Allen, S. L. ^{[2
]}

Corrigan, G. ^{[4
]}

Fenstermacher, M. E. ^{[2
]}

Harting, D. ^{[4
,5
]}

Lasnier, C. J. ^{[2
]}

Scotti, F. ^{[2
]}

Wang, H. Q.

Watkins, J. G. ^{[1
,6
]}

机构：

[1] Aalto Univ, Otakaari 1, Espoo 02150, Finland

[2] Lawrence Livermore Natl Lab, Livermore, CA USA

[3] Gen Atom, San Diego, CA USA

[4] Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon, England

[5] Forschungszentrum Julich, Inst Energy & Climate Res Plasma Phys, Julich, Germany

[6] Sandia Natl Labs, Albuquerque, NM USA

来源：

NUCLEAR MATERIALS AND ENERGY | 2023年 / 34卷

关键词：

Divertor plasma; DIII-D; Divertor Thomson Scattering; EDGE2D-EIRENE; PLASMA; TRANSPORT;

D O I：

10.1016/j.nme.2023.101372

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Comparisons of profiles of the electron temperature (Te), density (ne) and pressure (pe) measured with Divertor Thomson Scattering in DIII-D low-confinement mode discharges to predictions from the edge fluid code EDGE2DEIRENE [1] show that the models implemented in EDGE2D-EIRENE predict the measurements within their collective uncertainties if the Te at the separatrix (Te,sep) is 10 eV, or higher. The simulations do not predict, however, the peaked Te and ne profiles measured adjacent to the target plate when Te,sep, is below 10 eV, i.e., for the plasma downstream from the region of ionization of deuterium atoms. Inclusion of cross-field drifts and a fivefold reduction of radial transport cannot reconcile the discrepancy between the measurements and predictions.

引用

页数：9

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