Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Vallhagen, Oskar"'
Autor:
Ekmark, Ida, Hoppe, Mathias, Fülöp, Tünde, Jansson, Patrik, Antonsson, Liam, Vallhagen, Oskar, Pusztai, Istvan
Publikováno v:
Journal of Plasma Physics, 90(3), 905900306 (2024)
When simulating runaway electron dynamics in tokamak disruptions, fluid models with lower numerical cost are often preferred to more accurate kinetic models. The aim of this work is to compare fluid and kinetic simulations of a large variety of diffe
Externí odkaz:
http://arxiv.org/abs/2402.05843
Autor:
Vallhagen, Oskar, Hanebring, Lise, Artola, Javier, Lehnen, Michael, Nardon, Eric, Fülöp, Tünde, Hoppe, Mathias, Newton, Sarah, Pusztai, Istvan
This study systematically explores the parameter space of disruption mitigation through shattered pellet injection in ITER with a focus on runaway electron dynamics, using the disruption modelling tool DREAM. The physics fidelity is considerably incr
Externí odkaz:
http://arxiv.org/abs/2401.14167
Autor:
Pusztai, Istvan, Ekmark, Ida, Bergström, Hannes, Halldestam, Peter, Jansson, Patrik, Hoppe, Mathias, Vallhagen, Oskar, Fülöp, Tünde
A Bayesian optimization framework is used to investigate scenarios for disruptions mitigated with combined deuterium and neon injection in ITER. The optimization cost function takes into account limits on the maximum runaway current, the transported
Externí odkaz:
http://arxiv.org/abs/2302.01260
The safe operation of tokamak reactors requires a reliable modeling capability of disruptions, and in particular the spatio-temporal dynamics of associated runaway electron currents. In a disruption, instabilities can break up magnetic surfaces into
Externí odkaz:
http://arxiv.org/abs/2206.00904
Autor:
Vallhagen, Oskar
The sudden loss of confinement of the energy content of fusion plasmas in off-normal events, called disruptions, is among the most severe threats to the future of fusion energy based on the tokamak design. An efficient disruption mitigation system wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4160::dab10bcdc3572c922597fb9471649ad2
https://research.chalmers.se/en/publication/535522
https://research.chalmers.se/en/publication/535522
Autor:
Berger, Esmée, Pusztai, István, Newton, Sarah L., Hoppe, Mathias, Vallhagen, Oskar, Fil, Alexandre, Fülöp, Tünde
Publikováno v:
Journal of Plasma Physics; Dec2022, Vol. 88 Issue 6, p1-20, 20p
Publikováno v:
Journal of Plasma Physics; 2022, Vol. 88 Issue 4, p1-20, 20p