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pro vyhledávání: '"Lackner, K"'
We comment on the note "Low Q nuclear fusion in a volume heated mixed fuel reactor" by Ruhl and Korn in which hydrodynamic life-time considerations are included in estimates of ignition energy for uncompressed fusion fuel targets. For the case of DT
Externí odkaz:
http://arxiv.org/abs/2303.10017
Autor:
Cathey, A, Hoelzl, M, Gil, L, Dunne, MG, Harrer, GF, Huijsmans, GTA, Kalis, J, Lackner, K, Pamela, SJP, Wolfrum, E, Günter, S, team, the JOREK, Team, the ASDEX Upgrade, Team, the EUROfusion MST1
Regimes of operation in tokamaks that are devoid of large ELMs have to be better understood to extrapolate their applicability to reactor-relevant devices. This paper describes non-linear extended MHD simulations that use an experimental equilibrium
Externí odkaz:
http://arxiv.org/abs/2301.09066
Autor:
Cathey, A., Hoelzl, M., Harrer, G., Dunne, M. G., Huijsmans, G. T. A., Lackner, K., Pamela, S. J. P., Wolfrum, E., Günter, S., team, the JOREK, Team, the ASDEX Upgrade, Team, the EUROfusion MST1
The development of small- and no-ELM regimes for ITER is a high priority topic due to the risks associated to type-I ELMs. By considering non-linear extended MHD simulations of the ASDEX Upgrade tokamak with the JOREK code, we probe a regime that avo
Externí odkaz:
http://arxiv.org/abs/2110.07908
Autor:
Cathey, A., Hoelzl, M., Futatani, S., Lang, P. T., Lackner, K., Huijsmans, G. T. A., Pamela, S. J. P., Günter, S., team, the JOREK, Team, the ASDEX Upgrade, Team, the EUROfusion MST1
Injecting frozen deuterium pellets into an ELMy H-mode plasma is a well established scheme for triggering edge localized modes (ELMs) before they naturally occur. Based on an ASDEX Upgrade H-mode plasma, this article presents a comparison of extended
Externí odkaz:
http://arxiv.org/abs/2102.05850
Autor:
Cathey, Andres, Hoelzl, M., Lackner, K., Huijsmans, G. T. A., Dunne, M. G., Wolfrum, E., Pamela, S. J. P., Orain, F., Günter, S., team, the JOREK, Team, the ASDEX Upgrade, Team, the EUROfusion MST1
A triggering mechanism responsible for the explosive onset of edge localised modes (ELMs) in fusion plasmas is identified by performing, for the first time, non-linear magnetohydrodynamic simulations of repetitive type-I ELMs. Briefly prior to the EL
Externí odkaz:
http://arxiv.org/abs/2007.09997
Publikováno v:
Physics of Plasmas 27, 032501 (2020)
In the present work a simple analytical approach is presented in order to clarify the physics behind the edge current density behaviour of a hot plasma entering in contact with a resistive conductor. When a plasma enters in contact with a highly resi
Externí odkaz:
http://arxiv.org/abs/2003.04064
Autor:
Orain, François, Hoelzl, M., Mink, F., Willensdorfer, M., Bécoulet, M., Dunne, M., Günter, S., Huijsmans, G. T. A., Lackner, K., Pamela, S., Suttrop, W., Viezzer, E.
Publikováno v:
Physics of Plasmas 26, 042503 (2019)
The interaction between Edge Localized Modes (ELMs) and Resonant Magnetic Perturbations (RMPs) is modeled with the magnetohydrodynamic code JOREK using experimental parameters from ASDEX Upgrade discharges. The ELM mitigation or suppression is optima
Externí odkaz:
http://arxiv.org/abs/1902.00398
Publikováno v:
Nuclear FUsion, Vol 31, No. 9, pp. 1595 (1991)
High density ($.3 < \bar{n}/10^{20}{\rm m^{-3}} < .8$), low $q_a$ ($1.9
Externí odkaz:
http://arxiv.org/abs/1803.10398
A self-regulating magnetic flux pumping mechanism in tokamaks that maintains the core safety factor at $q\approx 1$, thus preventing sawteeth, is analyzed in nonlinear 3D magnetohydrodynamic simulations using the M3D-C$^1$ code. In these simulations,
Externí odkaz:
http://arxiv.org/abs/1706.06672
Autor:
Hoelzl, M., Huijsmans, G. T. A., Merkel, P., Atanasiu, C., Lackner, K., Nardon, E., Aleynikova, K., Liu, F., Strumberger, E., McAdams, R., Chapman, I., Fil, A.
The dynamics of large scale plasma instabilities can strongly be influenced by the mutual interaction with currents flowing in conducting vessel structures. Especially eddy currents caused by time-varying magnetic perturbations and halo currents flow
Externí odkaz:
http://arxiv.org/abs/1408.6379