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

^*Tämän työn vastaava kirjoittaja

Lawrence Livermore National Laboratory
General Atomics
JET
Forschungszentrum Jülich GmbH
Sandia National Laboratories

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

3 Sitaatiot (Scopus)

62 Lataukset (Pure)

Abstrakti

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.

Alkuperäiskieli	Englanti
Artikkeli	101372
Julkaisu	Nuclear Materials and Energy
Vuosikerta	34
DOI - pysyväislinkit	https://doi.org/10.1016/j.nme.2023.101372
Tila	Julkaistu - maalisk. 2023
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

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.

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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 MBLisenssi: CC BY-NC-ND

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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, Artikkeli 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, Vuosikerta 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.
julkaisussa: Nuclear Materials and Energy, Vuosikerta 34, 101372, 03.2023.

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

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

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