magneto-hydro-dynamic stability of fusion plasmas

Organization profile

Introduction / mission

The control of large scale magnetic instabilities in fusion plasmas is essential for the successful operation of ITER and future fusion power plants. Large scale numerical simulations on the largest supercomputers are applied to study the physics of these instabilities, their consequences and the methods for control.

Highlighted phrase

Simulations of instabilities in fusion plasmas, developing the predictive capability for their occurrence, consequences and control, are required for the preparation of operation of ITER and design of future machines

Organisational profile

Fusion plasmas can suffer from global instabilities of the magnetic structure of the plasma. The so-called magnetohydrodynamic (MHD) instabilities, driven unstable by the plasma pressure and current, can cause fast losses of the thermal plasma energy. A typical time scale is of the order of 100ms to 1ms.

In present tokamak experiments the effect of the fast MHD induced energy losses to the first wall are mostly tolerable. However, in ITER and future fusion power plants the resulting heat fluxes are likely to be beyond the melting limits of the plasma facing components.

Large-scale computer simulation can give valuable insight in the underlying physics of MHD instabilities as well as the methods for their control. For this purpose, the MHD simulation code JOREK is under development within the European fusion program ( The JOREK code is unique in that it combines a (MHD) fluid description of the main plasma with realistic description of the plasma wall interaction. This includes a particle model for neutrals and impurities, describing the sputtering, ionization, recombination and collisions.

The main applications include so-called Edge Localised Modes (ELMs), radiative instabilities leading to disruptions and MHD instabilities driven unstable by the population of fast particles in the plasma originating from fusion reactions and external heating.

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  • Network Recent external collaboration on country level. Dive into details by clicking on the dots.

    Research Output

    First predictive simulations for deuterium shattered pellet injection in ASDEX Upgrade

    Hoelzl, M., Hu, D., Nardon, E. & Huijsmans, G. T. A., 1 Feb 2020, In : Physics of Plasmas. 27, 2, 21 p., 022510.

    Research output: Contribution to journalArticleAcademicpeer-review

  • Modeling of TAE mode excitation with an antenna in realistic X-point geometry

    Dvornova, A., Huijsmans, G. T. A., Sharapov, S., Artola Such, F. J., Puglia, P., Hölzl, M., Pamela, S., Fasoli, A. & Testa, D., 1 Jan 2020, In : Physics of Plasmas. 27, 1, 17 p., 5126171.

    Research output: Contribution to journalArticleAcademicpeer-review

  • Nonlinear modeling of the effect of n = 2 resonant magnetic field perturbation on peeling-ballooning modes in KSTAR

    Kim, S. K., Pamela, S., Kwon, O., Becoulet, M., Huijsmans, G. T. A., In, Y., Hoelzl, M., Lee, J. H., Kim, M., Park, G. Y., Kim, H. S., Lee, Y. H., Choi, G. J., Lee, C. Y., Kirk, A., Thornton, A. & Na, Y. S., Feb 2020, In : Nuclear Fusion. 60, 2, 026009.

    Research output: Contribution to journalArticleAcademicpeer-review

  • 1 Citation (Scopus)

    Press / Media

    Tokamaks of the world, contribute!

    Guido T.A. Huijsmans


    1 item of Media coverage

    Press/Media: Expert Comment

    Student theses

    Evaluation of core beta effects on pedestal MHD stability in ITER and consequences for energy confinement

    Author: Oosterbeek, W., 2018

    Supervisor: Huijsmans, G. T. (Supervisor 1), Weyens, T. (External coach), van Dijk, J. (Supervisor 2) & Loarte, A. (External person) (External coach)

    Student thesis: Master


    Full-orbit particle simulations with sawtooth, RMP and ripple for AUG

    Author: Cats, S. Y., 2017

    Supervisor: de Blank, H. J. (Supervisor 1), Westerhof, E. (External coach), Huijsmans, G. T. (Supervisor 2), Felici, F. A. (Supervisor 2), Kamp, L. P. (Supervisor 2), van Dijk, J. (Supervisor 2) & van der Heijden, R. W. (Supervisor 2)

    Student thesis: Master


    Improvement of sol models in Jorek with kinetic neutral particles coupled to MHD

    Author: Franssen, S., 2018

    Supervisor: Huijsmans, G. T. (Supervisor 1), van Vugt, D. C. (Supervisor 2) & Loarte, A. (External person) (External coach)

    Student thesis: Master