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| 001 | 904051 | ||
| 005 | 20240711113818.0 | ||
| 024 | 7 | _ | |a 10.1016/j.nme.2021.100969 |2 doi |
| 024 | 7 | _ | |a 2128/29868 |2 Handle |
| 024 | 7 | _ | |a WOS:000657474100002 |2 WOS |
| 037 | _ | _ | |a FZJ-2021-05621 |
| 082 | _ | _ | |a 624 |
| 100 | 1 | _ | |a Horsten, N. |0 0000-0001-7660-5565 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Application of spatially hybrid fluid–kinetic neutral model on JET L-mode plasmas |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2021 |b Elsevier |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a We present a spatially hybrid fluid–kinetic neutral model that consists of a fluid model for the hydrogen atoms in the plasma grid region coupled to a kinetic model for atoms sampled at the plasma–void interfaces and a fully kinetic model for the hydrogen molecules. The atoms resulting from molecular dissociation are either treated kinetically (approach 1) or are incorporated in the fluid model (approach 2). For a low-density JET L-mode case, the hybrid method reduces the maximum fluid–kinetic discrepancies for the divertor strike-point electron densities and electron temperatures from approximately 150% to approximately 20% for approach 1 and to approximately 40% for approach 2. Although the simulations with purely fluid neutral model become more accurate for increasing upstream plasma density, we still observe a significant improvement by using the hybrid approach. When consuming the same CPU time in averaging the electron strike-point densities and temperatures over multiple iterations as for the simulations with fully kinetic neutrals, hybrid approach 1 reduces the statistical error with on average a factor 2.5. Hybrid approach 2 further increases this factor to approximately 3.3, at the expense of accuracy. |
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| 700 | 1 | _ | |a Groth, M. |0 P:(DE-Juel1)171218 |b 1 |
| 700 | 1 | _ | |a Blommaert, M. |0 P:(DE-Juel1)156199 |b 2 |
| 700 | 1 | _ | |a Dekeyser, W. |0 P:(DE-Juel1)162424 |b 3 |
| 700 | 1 | _ | |a Pérez, I. Paradela |0 P:(DE-Juel1)178746 |b 4 |
| 700 | 1 | _ | |a Wiesen, S. |0 P:(DE-Juel1)5247 |b 5 |e Corresponding author |
| 773 | _ | _ | |a 10.1016/j.nme.2021.100969 |g Vol. 27, p. 100969 - |0 PERI:(DE-600)2808888-8 |p 100969 - |t Nuclear materials and energy |v 27 |y 2021 |x 2352-1791 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/904051/files/1-s2.0-S2352179121000545-main.pdf |y OpenAccess |
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