Artículo
SOLPS 5.0 simulations of the high-field side divertor detachment of L-mode plasmas in ASDEX upgrade with convection-dominated radial SOL transport
Autor/es | Karhunen, Juuso
Groth, Mathias Coster, D. P. Carralero, D. Guimarãis, Luís Nikolaeva, V. E. Potzel, S. Pütterich, T. Reimold, F. Scarabosio, Andrea Viezzer, Eleonora Wischmeier, Marco |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2019 |
Fecha de depósito | 2019-03-22 |
Publicado en |
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Resumen | SOLPS 5.0 simulations assuming convection-dominated radial ion transport show qualitative and quantitative agreement with measurements of detached high-field side (HFS) divertor conditions for unseeded low-power L-mode ... SOLPS 5.0 simulations assuming convection-dominated radial ion transport show qualitative and quantitative agreement with measurements of detached high-field side (HFS) divertor conditions for unseeded low-power L-mode plasmas in ASDEX Upgrade, while simultaneously maintaining a reasonable match to the density and temperature measurements at the low-field side (LFS) and HFS midplanes within the scatter of the data. The decreased diffusive transport from the high-density region in the HFS divertor volume across the separatrix into the core enables spatial extension of the high-density front to above the X-point in agreement with spectroscopic measurements. The suppressed ion fuelling from this region into the core plasma allows increasing the neutral D 2 fuelling to experimental levels, leading to agreement with the measured sub-divertor neutral fluxes within 30%. Detachment of the HFS divertor is observed as a significant decrease of the target ion flux and as reproduction of the characteristic roll-over behaviour of the integrated target ion current at increasing upstream density. |
Identificador del proyecto | 633053 |
Cita | Karhunen, J., Groth, M., Coster, D.P., Carralero, D., Guimarãis, L., Nikolaeva, V.E.,...,Wischmeier, M. (2019). SOLPS 5.0 simulations of the high-field side divertor detachment of L-mode plasmas in ASDEX upgrade with convection-dominated radial SOL transport. Nuclear Materials and Energy, 19, 279-286. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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SOLPS 5.0 simulations of the ... | 1.815Mb | [PDF] | Ver/ | |