Predictive modelling of liquid metal divertor: From COMPASS tokamak towards Upgrade

0555296 - ÚFP 2022 RIV SE eng J - Journal Article
Horáček, Jan - Cecrdle, J. - Tskhakaya, David - Dejarnac, Renaud - Schwartz, J. - Komm, Michael - Cavalier, Jordan - Adámek, Jiří - Lukeš, S. - Veselovský, Viktor - Varju, Jozef - Bartoň, Petr - Entler, Slavomír - Gasparyan, Y. - Gauthier, E. - Gerardin, Jonathan - Hromádka, Jakub - Hron, Martin - Iafrati, M. - Imríšek, Martin - Jeřáb, Martin - Kovařík, Karel - Mazzitelli, G. - Naydenkova, Diana - van Oost, G. - Pánek, Radomír - Prishvitsin, A. - Seidl, Jakub - Šesták, David - Tomeš, Matěj - Vasina, Y. - Vertkov, A. - Vondráček, Petr - Weinzettl, Vladimír
Predictive modelling of liquid metal divertor: From COMPASS tokamak towards Upgrade.
Physica Scripta. Roč. 96, č. 12 (2021), č. článku ac1dc9. ISSN 0031-8949. E-ISSN 1402-4896
R&D Projects: GA MŠMT(CZ) EF16_013/0001551; GA MŠMT(CZ) EF16_019/0000768; GA ČR(CZ) GA20-28161S
Institutional support: RVO:61389021
Keywords : Modellings * Plasma * Tokamak
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 3.081, year: 2021
Method of publishing: Limited access
https://iopscience.iop.org/article/10.1088/1402-4896/ac1dc9

Following ELMy H-mode experiments with liquid metal divertor target on the COMPASS tokamak, we predict the behavior of a similar target on COMPASS Upgrade, where it will be exposed to surface heat fluxes even higher than those expected in the future EU DEMO attached divertor. We simulate the heat conduction, sputtering, evaporation, excitation and radiation of lithium and tin in the divertor area. Measured high-resolution data from COMPASS tokamak were rescaled towards the Upgrade based on many established scalings. Our simulation then yields the amount of released metal which ranges from 4 mg s−1 upto 12 g s−1 depending mainly on the geometry and Li/Sn choice, quite independently from active cooling or strike point sweeping.
Permanent Link: http://hdl.handle.net/11104/0329812