Reduced physics model of the tokamak Scrape-Off-Layer for pulse design
The dynamic interplay between the core and the edge plasma has important consequences in the confinement and heating of fusion plasma. The transport of the Scrape-Off-Layer (SOL) plasma imposes boundary conditions on the core plasma, and neutral transport through the SOL influences the core plasma s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Nuclear Materials and Energy |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179122002356 |
| _version_ | 1811154436490264576 |
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| author | X. Zhang F.M. Poli E.D. Emdee M. Podestà |
| author_facet | X. Zhang F.M. Poli E.D. Emdee M. Podestà |
| author_sort | X. Zhang |
| collection | DOAJ |
| description | The dynamic interplay between the core and the edge plasma has important consequences in the confinement and heating of fusion plasma. The transport of the Scrape-Off-Layer (SOL) plasma imposes boundary conditions on the core plasma, and neutral transport through the SOL influences the core plasma sourcing. In order to better study these effects in a self-consistent, time-dependent fashion with reasonable turn-around time, a reduced model is needed. In this paper we introduce the SOL Box Model, a reduced SOL model that calculates the plasma temperature and density in the SOL given the core-to-edge particle and power fluxes and recycling coefficients. The analytic nature of the Box Model allows one to readily incorporate SOL physics in time-dependent transport solvers for pulse design applications in the control room. Here we demonstrate such a coupling with the core transport solver TRANSP and compare the results with density and temperature measurements, obtained through Thomson scattering and Langmuir probes, of an NSTX discharge. Implications for future interpretive and predictive simulations are discussed. |
| first_indexed | 2024-04-10T04:15:35Z |
| format | Article |
| id | doaj.art-f6e81ced002a49fea86f22b2293fa2d5 |
| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-04-10T04:15:35Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj.art-f6e81ced002a49fea86f22b2293fa2d52023-03-12T04:21:25ZengElsevierNuclear Materials and Energy2352-17912023-03-0134101354Reduced physics model of the tokamak Scrape-Off-Layer for pulse designX. Zhang0F.M. Poli1E.D. Emdee2M. Podestà3Corresponding author.; Princeton Plasma Physics Laboratory, 100 Stellerator Rd, Princeton, NJ 08536, USAPrinceton Plasma Physics Laboratory, 100 Stellerator Rd, Princeton, NJ 08536, USAPrinceton Plasma Physics Laboratory, 100 Stellerator Rd, Princeton, NJ 08536, USAPrinceton Plasma Physics Laboratory, 100 Stellerator Rd, Princeton, NJ 08536, USAThe dynamic interplay between the core and the edge plasma has important consequences in the confinement and heating of fusion plasma. The transport of the Scrape-Off-Layer (SOL) plasma imposes boundary conditions on the core plasma, and neutral transport through the SOL influences the core plasma sourcing. In order to better study these effects in a self-consistent, time-dependent fashion with reasonable turn-around time, a reduced model is needed. In this paper we introduce the SOL Box Model, a reduced SOL model that calculates the plasma temperature and density in the SOL given the core-to-edge particle and power fluxes and recycling coefficients. The analytic nature of the Box Model allows one to readily incorporate SOL physics in time-dependent transport solvers for pulse design applications in the control room. Here we demonstrate such a coupling with the core transport solver TRANSP and compare the results with density and temperature measurements, obtained through Thomson scattering and Langmuir probes, of an NSTX discharge. Implications for future interpretive and predictive simulations are discussed.http://www.sciencedirect.com/science/article/pii/S2352179122002356Scrape Off LayerReduced modelingTime dependent simulationsTRANSP |
| spellingShingle | X. Zhang F.M. Poli E.D. Emdee M. Podestà Reduced physics model of the tokamak Scrape-Off-Layer for pulse design Nuclear Materials and Energy Scrape Off Layer Reduced modeling Time dependent simulations TRANSP |
| title | Reduced physics model of the tokamak Scrape-Off-Layer for pulse design |
| title_full | Reduced physics model of the tokamak Scrape-Off-Layer for pulse design |
| title_fullStr | Reduced physics model of the tokamak Scrape-Off-Layer for pulse design |
| title_full_unstemmed | Reduced physics model of the tokamak Scrape-Off-Layer for pulse design |
| title_short | Reduced physics model of the tokamak Scrape-Off-Layer for pulse design |
| title_sort | reduced physics model of the tokamak scrape off layer for pulse design |
| topic | Scrape Off Layer Reduced modeling Time dependent simulations TRANSP |
| url | http://www.sciencedirect.com/science/article/pii/S2352179122002356 |
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