Mathematical modelling and scientific computing : some examples of applications to plasmas
Pierre Degond(UPS, Toulouse)
Friday February 5, 11.00 a.m. CERFACS Conference Room
Abstract :
Physical phenomena that involve charged particles (plasmas, semiconductors) are made extremely complex by the non-local character of the interaction force between the particles. Very often, the simulation of such systems requires the coupling of fluid mechanics codes (Euler or Navier-Stokes equations solvers) with electromagnetic codes (Maxwell equations solvers). The increasing interest in these phenomena in fundamental fields (such as space physics or thermonuclear fusion) as well as in applied areas (such as industrial processes, semiconductor device design, etc) makes the demand for quick and reliable simulation tools very strong. For that purpose, the combination of mathematical modelling with numerical analysis and scientific computing techniques has proved to be fairly efficient. The aim of this lecture is to illustrate this fact on a few plasma phyics problems :
The interaction of the solar wind plasma with a comet
The opening of a plasma switch.
Electron-wall interaction in ion propellors for satellites.
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