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

M. Groth; A. G. McLean; W. H. Meyer; A. W. Leonard; S. L. Allen; G. Corrigan; M. E. Fenstermacher; D. Harting; C. J. Lasnier; F. Scotti; H. Q. Wang; J. G. Watkins; the DIII-D team

doi:10.1016/j.nme.2023.101372

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

M. Groth^*
, A. G. McLean
, W. H. Meyer
, A. W. Leonard
, S. L. Allen
, G. Corrigan
, M. E. Fenstermacher
, D. Harting
, C. J. Lasnier
, F. Scotti
, H. Q. Wang
, J. G. Watkins
, the DIII-D team

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

3 Citations (Scopus)

58 Downloads (Pure)

Abstract

Comparisons of profiles of the electron temperature (T_e), density (n_e) and pressure (p_e) measured with Divertor Thomson Scattering in DIII-D low-confinement mode discharges to predictions from the edge fluid code EDGE2D-EIRENE [1] show that the models implemented in EDGE2D-EIRENE predict the measurements within their collective uncertainties if the T_e at the separatrix (T_e,sep) is 10 eV, or higher. The simulations do not predict, however, the peaked T_e and n_e profiles measured adjacent to the target plate when T_e,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.

Original language	English
Article number	101372
Journal	Nuclear Materials and Energy
Volume	34
DOIs	https://doi.org/10.1016/j.nme.2023.101372
Publication status	Published - Mar 2023
MoE publication type	A1 Journal article-refereed

Funding

This work was supported by US DOE under contract nos. DE-FC02-04ER54698, DE-AC52-07NA27344, DE-AC05-00OR22725 and DE-NA0003525. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-20 under grant agreement number 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The authors would like to thank Mr. Henri Kumpulainen of Aalto University for his extraordinary and very much appreciated Python scripting support.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

DIII-D
Divertor plasma
Divertor Thomson Scattering
EDGE2D-EIRENE

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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-DFinal published version, 7.11 MBLicence: CC BY-NC-ND

Cite this

Groth, M., McLean, A. G., Meyer, W. H., Leonard, A. W., Allen, S. L., Corrigan, G., Fenstermacher, M. E., Harting, D., Lasnier, C. J., Scotti, F., Wang, H. Q., Watkins, J. G., & the DIII-D team (2023). 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. Nuclear Materials and Energy, 34, Article 101372. https://doi.org/10.1016/j.nme.2023.101372

@article{33a07ca21a2e41c79a0da5fc3caa860c,

title = "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",

abstract = "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 EDGE2D-EIRENE [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.",

keywords = "DIII-D, Divertor plasma, Divertor Thomson Scattering, EDGE2D-EIRENE",

author = "M. Groth and McLean, \{A. G.\} and Meyer, \{W. H.\} and Leonard, \{A. W.\} and Allen, \{S. L.\} and G. Corrigan and Fenstermacher, \{M. E.\} and D. Harting and Lasnier, \{C. J.\} and F. Scotti and Wang, \{H. Q.\} and Watkins, \{J. G.\} and \{the DIII-D team\}",

note = "Funding Information: This work was supported by US DOE under contract nos. DE-FC02-04ER54698, DE-AC52-07NA27344, DE-AC05-00OR22725 and DE-NA0003525. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-20 under grant agreement number 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The authors would like to thank Mr. Henri Kumpulainen of Aalto University for his extraordinary and very much appreciated Python scripting support. | openaire: EC/H2020/633053/EU//EUROfusion ",

year = "2023",

month = mar,

doi = "10.1016/j.nme.2023.101372",

language = "English",

volume = "34",

journal = "Nuclear Materials and Energy",

issn = "2352-1791",

publisher = "Elsevier",

}

Groth, M, McLean, AG, Meyer, WH, Leonard, AW, Allen, SL, Corrigan, G, Fenstermacher, ME, Harting, D, Lasnier, CJ, Scotti, F, Wang, HQ, Watkins, JG & the DIII-D team 2023, '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', Nuclear Materials and Energy, vol. 34, 101372. https://doi.org/10.1016/j.nme.2023.101372

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. / Groth, M.; McLean, A. G.; Meyer, W. H. et al.
In: Nuclear Materials and Energy, Vol. 34, 101372, 03.2023.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - 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

AU - Groth, M.

AU - McLean, A. G.

AU - Meyer, W. H.

AU - Leonard, A. W.

AU - Allen, S. L.

AU - Corrigan, G.

AU - Fenstermacher, M. E.

AU - Harting, D.

AU - Lasnier, C. J.

AU - Scotti, F.

AU - Wang, H. Q.

AU - Watkins, J. G.

AU - the DIII-D team

N1 - Funding Information: This work was supported by US DOE under contract nos. DE-FC02-04ER54698, DE-AC52-07NA27344, DE-AC05-00OR22725 and DE-NA0003525. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-20 under grant agreement number 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The authors would like to thank Mr. Henri Kumpulainen of Aalto University for his extraordinary and very much appreciated Python scripting support. | openaire: EC/H2020/633053/EU//EUROfusion

PY - 2023/3

Y1 - 2023/3

N2 - 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 EDGE2D-EIRENE [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.

AB - 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 EDGE2D-EIRENE [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.

KW - DIII-D

KW - Divertor plasma

KW - Divertor Thomson Scattering

KW - EDGE2D-EIRENE

UR - https://www.scopus.com/pages/publications/85147548832

U2 - 10.1016/j.nme.2023.101372

DO - 10.1016/j.nme.2023.101372

M3 - Article

AN - SCOPUS:85147548832

SN - 2352-1791

VL - 34

JO - Nuclear Materials and Energy

JF - Nuclear Materials and Energy

M1 - 101372

ER -

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

Abstract

Funding

UN SDGs

Keywords

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