Bochum 2002 – scientific programme
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P: Plasmaphysik
P 21: Poster: Grundprobleme, Theorie, Plasmatechnologie, Astrophysikalische Plasmen
P 21.11: Poster
Monday, March 18, 2002, 17:40–18:40, HZO Foyer
Self-consistent 3D MHD modelling of space and laboratory plasmas based on the CWENO scheme — •Jens Kleimann1, Horst Fichtner1, Kai Germaschewski2, Rainer Grauer2, and Andreas Kopp1 — 1Theoretische Physik IV, insbes. Weltraum- und Astrophysik, Ruhr-Universität Bochum, 44780 Bochum — 2Theoretische Physik I, insbes. Plasma-, Laser- und Atomphysik, Ruhr-Universität Bochum, 44780 Bochum
Until recently, numerical simulations of highly super-Alfénic
plasmas have been severely limited regarding the treatment of
discontinuities. However, a correct understanding of numerous
laboratory and space plasmas requires a detailed reproduction
of the formation and propagation of shocks and singular
structures. Typical examples are bow shocks of planetary
magnetospheres and shocks driven by solar coronal mass ejections
in space plasmas or fast reconnection in laboratory plasmas.
Significant progress regarding the numerical simulation of such
plasmas was achieved with the development of the Central
Weighted Essentially NonOscillatory (CWENO) scheme. A
third-order scheme based on this technique, which is able to
efficiently capture strong gradients on small spatial scales,
forms the basis of our newly developed code. We present first
test results and discuss prospective applications,
particularly to the dynamics of the solar wind.