Zobrazeno 1 - 10
of 273
pro vyhledávání: '"S. Ratynskaia"'
Publikováno v:
Nuclear Materials and Energy, Vol 37, Iss , Pp 101545- (2023)
The new numerical implementation of the MEMOS-U physics model, fully validated in multiple EUROfusion sponsored experiments, is presented. The computational tool - MEMENTO (MEtallic Melt Evolution in Next-step TOkamaks)- is able to address fusion-rel
Externí odkaz:
https://doaj.org/article/6c9517b049434dd28624787b081a36bd
Autor:
Y. Corre, M-H. Aumeunier, A. Durif, J. Gaspar, K. Krieger, T. Loewenhoff, M. Richou, S. Ratynskaia, Q. Tichit, Y. Anquetin, R. Dejarnac, M. Diez, L. Dubus, M. Firdaouss, J. Gerardin, A.. Grosjean, J.P. Gunn, T. Loarer, P. Maget, C. Martin, K. Paschalidis, E. Tsitrone, M. Wirtz
Publikováno v:
Nuclear Materials and Energy, Vol 37, Iss , Pp 101546- (2023)
Assessing the performance of the ITER design for the tungsten (W) divertor Plasma Facing Units (PFUs) in a tokamak environment is a high priority issue to ensure efficient plasma operation. This paper reviews the most recent results derived from expe
Externí odkaz:
https://doaj.org/article/8daa185bfc6d47299e72398796f748a1
Autor:
Q. Tichit, A. Durif, J. Gaspar, Y. Anquetin, Y. Corre, M. Diez, L. Dubus, M. Firdaouss, J. Gerardin, A. Grosjean, J.P. Gunn, K. Krieger, M. Missirlian, S. Ratynskaia, P. Reilhac, M. Richou, F. Rigollet
Publikováno v:
Nuclear Materials and Energy, Vol 37, Iss , Pp 101537- (2023)
The consequences of tungsten (W) damaging processes, such as cracking and melting, on divertor lifetime and plasma operation are high priority issues for ITER. A sustained melting experiment was conducted in WEST using a 2 mm deep groove geometry on
Externí odkaz:
https://doaj.org/article/fd7599b33eb0402fbd322d8ecb4ff549
Publikováno v:
Nuclear Materials and Energy, Vol 37, Iss , Pp 101538- (2023)
The production and dynamics of beryllium melt pools are simulated in conditions relevant to unmitigated thermal quenches in ITER. Rayleigh–Taylor instabilities fed by Lorentz forces due to induced eddy currents are found to result in significant ma
Externí odkaz:
https://doaj.org/article/43b851522f3446a5ad054b71dcf48792
Autor:
M. De Angeli, V. Rohde, P. Tolias, S. Ratynskaia, F. Brochard, C. Conti, M. Faitsch, B. Kurzan, D. Ripamonti
Publikováno v:
Nuclear Materials and Energy, Vol 36, Iss , Pp 101476- (2023)
Pre-plasma mobilization of magnetic dust can be an important issue for future fusion reactors where plasma breakdown is critical. A combined on-line and off-line study of magnetic dust in ASDEX Upgrade is reported. Post-mortem collection revealed sim
Externí odkaz:
https://doaj.org/article/8bdd2b230bc04d82ab65224c55ed2f4a
Autor:
S. Ratynskaia, K. Paschalidis, P. Tolias, K. Krieger, Y. Corre, M. Balden, M. Faitsch, A. Grosjean, Q. Tichit, R.A. Pitts
Publikováno v:
Nuclear Materials and Energy, Vol 33, Iss , Pp 101303- (2022)
The risk of metallic armour melting constitutes a major concern for ITER and DEMO. Combined computational and experimental effort has led to a successful understanding of melt dynamics in present-day tokamaks, but there remain unexplored melting regi
Externí odkaz:
https://doaj.org/article/a8e8138df1ac4bb3ab9c583c7e502f7b
Autor:
J. Coburn, M. Lehnen, R.A. Pitts, E. Thorén, K. Ibano, L. Kos, M. Brank, G. Simic, S. Ratynskaia, R. Khayrutdinov, V. Lukash, B. Stein-Lubrano, F.J. Artola, E. Matveeva
Publikováno v:
Nuclear Materials and Energy, Vol 28, Iss , Pp 101016- (2021)
The beryllium (Be) main chamber wall interaction during a 5 MA/1.8 T upward, unmitigated VDE scenario, first analysed in [J. Coburn et al., Phys. Scr. T171 (2020) 014076] for ITER, has been re-evaluated using the latest energy deposition analysis sof
Externí odkaz:
https://doaj.org/article/8baed4cb46bb4922a4f28e47b9c9ec5e
Autor:
P. Tolias, M. De Angeli, G. Riva, S. Ratynskaia, G. Daminelli, L. Laguardia, M. Pedroni, D. Ripamonti, A. Uccello, E. Vassallo
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 18-22 (2019)
The adhesion of tungsten dust is measured on plasma-exposed and non-exposed tungsten substrates with the electrostatic detachment method. Tungsten substrates of comparable surface roughness have been exposed to the deuterium plasmas of the GyM linear
Externí odkaz:
https://doaj.org/article/d2079bed9366439c97909205eec55680
Publikováno v:
Nuclear Materials and Energy, Vol 17, Iss , Pp 222-227 (2018)
Tungsten (W) substrates with adhered beryllium (Be) proxy dust - copper, chromium, aluminium - have been exposed in the Magnum-PSI linear device. Their interaction with transient and stationary plasmas has been systematically studied under varying he
Externí odkaz:
https://doaj.org/article/f3339c843a36450f9cb061bd83059166
Publikováno v:
Nuclear Materials and Energy, Vol 17, Iss , Pp 194-199 (2018)
The first MEMOS 3D simulations of liquid metal motion on an inclined bulk tungsten sample transiently molten by edge-localized modes (ELMs) are reported. The exposures took place at the outer ASDEX-Upgrade divertor with the tungsten surface tangent i
Externí odkaz:
https://doaj.org/article/30e1937018144397b6309d891919a3c4