Validation of a theory-based transport model in the ASDEX Upgrade flight simulator integrated modeling framework
In this work, the theory-based turbulence-driven transport model Trapped Gyro Landau Fluid (TGLF)-SAT2 (Staebler et al 2020 Plasma Phys. Control. Fusion 63 015013) (hereafter abbreviated as TGLF) is implemented and tested in the Fenix flight simulator (Fable et al 2022 Plasma Phys. Control. Fusion 6...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | Nuclear Fusion |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1741-4326/adeac3 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849318325486616576 |
|---|---|
| author | F. Solfronk E. Fable T. Pütterich P. David the ASDEX Upgrade Team |
| author_facet | F. Solfronk E. Fable T. Pütterich P. David the ASDEX Upgrade Team |
| author_sort | F. Solfronk |
| collection | DOAJ |
| description | In this work, the theory-based turbulence-driven transport model Trapped Gyro Landau Fluid (TGLF)-SAT2 (Staebler et al 2020 Plasma Phys. Control. Fusion 63 015013) (hereafter abbreviated as TGLF) is implemented and tested in the Fenix flight simulator (Fable et al 2022 Plasma Phys. Control. Fusion 64 044002) against the current ramp-up phases of ASDEX Upgrade discharges. Turbulence spectra for the measured kinetic profiles are calculated and analyzed using TGLF. Additionally, predictive simulations of the ramp-up are conducted using Fenix, with TGLF computing turbulent energy and particle transport, and compared with the measurements. In order to reproduce the evolution of the kinetic profiles in the presented modeling framework, the transport coefficients have to be limited in absolute value for $\rho_{\mathrm{pol}} \gtrsim 0.975$ . Moreover, an additional artificial particle diffusive component has to be added to avoid unphysical spikes in the density profile. Even without any modifications, the transport computed by TGLF for $\rho_{\mathrm{pol}} \lesssim 0.9$ seems to be close to the transport in the experiment, whereby the kinetic profiles of the experiment can be reproduced. |
| format | Article |
| id | doaj-art-2c93bbb841914d54b319102b877c2ff6 |
| institution | Kabale University |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-2c93bbb841914d54b319102b877c2ff62025-08-20T03:50:53ZengIOP PublishingNuclear Fusion0029-55152025-01-0165808602010.1088/1741-4326/adeac3Validation of a theory-based transport model in the ASDEX Upgrade flight simulator integrated modeling frameworkF. Solfronk0https://orcid.org/0009-0002-9287-1665E. Fable1https://orcid.org/0000-0001-5019-9685T. Pütterich2https://orcid.org/0000-0002-8487-4973P. David3https://orcid.org/0000-0003-4837-8507the ASDEX Upgrade Team4Max-Planck-Institut für Plasmaphysik , 85748 Garching, GermanyMax-Planck-Institut für Plasmaphysik , 85748 Garching, GermanyMax-Planck-Institut für Plasmaphysik , 85748 Garching, GermanyMax-Planck-Institut für Plasmaphysik , 85748 Garching, GermanyMax-Planck-Institut für Plasmaphysik , 85748 Garching, GermanyIn this work, the theory-based turbulence-driven transport model Trapped Gyro Landau Fluid (TGLF)-SAT2 (Staebler et al 2020 Plasma Phys. Control. Fusion 63 015013) (hereafter abbreviated as TGLF) is implemented and tested in the Fenix flight simulator (Fable et al 2022 Plasma Phys. Control. Fusion 64 044002) against the current ramp-up phases of ASDEX Upgrade discharges. Turbulence spectra for the measured kinetic profiles are calculated and analyzed using TGLF. Additionally, predictive simulations of the ramp-up are conducted using Fenix, with TGLF computing turbulent energy and particle transport, and compared with the measurements. In order to reproduce the evolution of the kinetic profiles in the presented modeling framework, the transport coefficients have to be limited in absolute value for $\rho_{\mathrm{pol}} \gtrsim 0.975$ . Moreover, an additional artificial particle diffusive component has to be added to avoid unphysical spikes in the density profile. Even without any modifications, the transport computed by TGLF for $\rho_{\mathrm{pol}} \lesssim 0.9$ seems to be close to the transport in the experiment, whereby the kinetic profiles of the experiment can be reproduced.https://doi.org/10.1088/1741-4326/adeac3magnetic confinementflight simulatorASTRAFenixTGLF-SAT2transport |
| spellingShingle | F. Solfronk E. Fable T. Pütterich P. David the ASDEX Upgrade Team Validation of a theory-based transport model in the ASDEX Upgrade flight simulator integrated modeling framework Nuclear Fusion magnetic confinement flight simulator ASTRA Fenix TGLF-SAT2 transport |
| title | Validation of a theory-based transport model in the ASDEX Upgrade flight simulator integrated modeling framework |
| title_full | Validation of a theory-based transport model in the ASDEX Upgrade flight simulator integrated modeling framework |
| title_fullStr | Validation of a theory-based transport model in the ASDEX Upgrade flight simulator integrated modeling framework |
| title_full_unstemmed | Validation of a theory-based transport model in the ASDEX Upgrade flight simulator integrated modeling framework |
| title_short | Validation of a theory-based transport model in the ASDEX Upgrade flight simulator integrated modeling framework |
| title_sort | validation of a theory based transport model in the asdex upgrade flight simulator integrated modeling framework |
| topic | magnetic confinement flight simulator ASTRA Fenix TGLF-SAT2 transport |
| url | https://doi.org/10.1088/1741-4326/adeac3 |
| work_keys_str_mv | AT fsolfronk validationofatheorybasedtransportmodelintheasdexupgradeflightsimulatorintegratedmodelingframework AT efable validationofatheorybasedtransportmodelintheasdexupgradeflightsimulatorintegratedmodelingframework AT tputterich validationofatheorybasedtransportmodelintheasdexupgradeflightsimulatorintegratedmodelingframework AT pdavid validationofatheorybasedtransportmodelintheasdexupgradeflightsimulatorintegratedmodelingframework AT theasdexupgradeteam validationofatheorybasedtransportmodelintheasdexupgradeflightsimulatorintegratedmodelingframework |