Výsledky vyhledávání - "Järvinen, Aaro"

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Deep or Not Deep: Supervised Learning Approaches to Modeling the Pedestal Density

Autor: Kit, Adam, Jaervinen, Aaro, Frassinetti, Lorenzo, Wiesen, Sven, Contributors, JET

Pedestal is the key to conventional high performance plasma scenarios in tokamaks. However, high fidelity simulations of pedestal plasmas are extremely challenging due to the multiple physical processes and scales that are encompassed by tokamak pede

Externí odkaz: http://arxiv.org/abs/2209.07893

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Bayesian approach for validation of runaway electron simulations

Autor: Järvinen, Aaro, Fülöp, Tünde, Hirvijoki, Eero, Hoppe, Mathias, Kit, Adam, Åström, Jan

Plasma-terminating disruptions in future fusion reactors may result in conversion of the initial current to a relativistic runaway electron beam. Validated predictive tools are required to optimize the scenarios and mitigation actuators to avoid the

Externí odkaz: http://arxiv.org/abs/2208.01858

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Bayesian approach for validation of runaway electron simulations

Autor: JET Contributors, Järvinen, Aaro Einari, Fülöp, T., Hirvijoki, E., Hoppe, M., Kit, Adam, Åström, Jan Anders

Publikováno v: Järvinen, A E, Fülöp, T, Hirvijoki, E, Hoppe, M, Kit, A, Åström, J & JET Contributors 2022, ' Bayesian approach for validation of runaway electron simulations ', Journal of Plasma Physics, vol. 88, no. 6, 905880612 . https://doi.org/10.1017/S0022377822001210
Järvinen, A, Fülöp, T, Hirvijoki, E, Hoppe, M, Kit, A & Åström, J 2022, ' Bayesian approach for validation of runaway electron simulations ', 9th Runaway Electron Modelling (REM) meeting, Garching, Germany, 2/05/22-6/05/22 . < https://ft.nephy.chalmers.se/?p=abstract&id=34 >
VTT Technical Research Centre of Finland-PURE

Plasma-terminating disruptions in future fusion reactors may result in conversion of the initial current to a relativistic runaway electron beam. Validated predictive tools are required to optimise the scenarios and mitigation actuators to avoid the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3792bf310a9dfa275484e484544aa824
http://arxiv.org/abs/2208.01858

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Kinetic modelling of parallel ion transport in the scrape-off layer and divertor of inter-edge localised mode JET high radiative H-mode plasma

Autor: Chankin, A. V., Corrigan, G., Järvinen, Aaro, Contributors, J. E.T.

Publikováno v: Chankin, A V, Corrigan, G, Järvinen, A & Contributors, J E T 2020, ' Kinetic modelling of parallel ion transport in the scrape-off layer and divertor of inter-edge localised mode JET high radiative H-mode plasma ', Plasma Physics and Controlled Fusion, vol. 62, no. 10, 105022 . https://doi.org/10.1088/1361-6587/abaec4
Plasma Physics and Controlled Fusion

KInetic code for Plasma Periphery (KIPP) was used to assess the importance of kinetic effects of parallel ion transport in the scrape-off layer (SOL) and divertor of JET high radiative H-mode inter-edge localised mode plasma conditions with strong ni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fdc189661f3883e098432ac687724c5
https://doi.org/10.1088/1361-6587/abaec4

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Effect of opacity on the density pedestal structure in DIII-D and Alcator C-Mod

Autor: Mordijck, S., Groebner, Richard Joseph, Osborne, Tom, Carlstrom, Thomas Neil, Glass, Fenton, Snyder, Philip B., Hughes, Jerry W., Järvinen, Aaro E., Salmi, Antti, Tala, Tuomas, Laggner, Florian, McKee, George R., Moyer, Richard A., Rhodes, Terry L., Zeng, Lei

Publikováno v: Mordijck, S, Groebner, R J, Osborne, T, Carlstrom, T N, Glass, F, Snyder, P B, Hughes, J W, Järvinen, A E, Salmi, A, Tala, T, Laggner, F, McKee, G R, Moyer, R A, Rhodes, T L & Zeng, L 2018, ' Effect of opacity on the density pedestal structure in DIII-D and Alcator C-Mod ', 60th Annual Meeting of the APS Division of Plasma Physics, Portland, United States, 5/11/18-9/11/18 . < http://meetings.aps.org/Meeting/DPP18/Session/UP11.43 >

Analysis of experimental data from DIII-D and C-Mod is used to study the role of opacity on the density pedestal structure. Dα measurements at the midplane on DIII-D indicate that we were able to push the ionization front further out by increasing t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=355e65625b88::1998fd3e95496561490eb0a7033a12a6
https://cris.vtt.fi/en/publications/ad6d4439-8a52-42a3-b465-4738343be886

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