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Calendar of Physics Talks Vienna
| Challenges in Numerical Simulations of Astrophysical Flows |
| Speaker: | Hannes Grimm-Strele (Uni Wien) |
| Abstract: | Abstract: Recent progress in multi-dimensional modelling of stars shows that the traditional one-dimensional approach is not sufficient to properly describe the structure of the star. Due to the wide range of length and time scales involved and the mixed hyperbolic-parabolic character of the governing equations these simulations are very difficult and expensive to carry out. Insufficient resolution gives qualitatively wrong results and numerical schemes of low order are not efficient. Boundary conditions have a large influence on the solution and must be designed suitably. Finally, the numerical grid must stay simple (i.e., structured) such that high-order methods are applicable, but must also offer some flexibility to cover more complicated domains. The simulation code ANTARES which is developed at the Faculty of Mathematics of the University of Vienna is designed to face these problems |
| Date: | Tue, 27.11.2012 |
| Time: | 12:15 |
| Duration: | 60 min |
| Location: | Freihaus TU Wien, Wiedner Hauptstr. 8-10, Sem E136 |
| Contact: | stetina@hep.itp.tuwien.ac.at |
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