Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..385..259h&link_type=abstract
Numerical Modeling of Space Plasma Flows: Astronum 2007 ASP Conference Series, Vol. 385, proceedings of the conference held 10-1
Astronomy and Astrophysics
Astronomy
Scientific paper
We have developed a numerical simulation scheme for three-dimensional magnetohydrodynamical flow with shocks. The numerical scheme is based on the Roe-type scheme and includes additional numerical viscosity to care the carbuncle instability. The numerical viscosity is added only in the regions where the characteristics of either fast or slow waves converges, i.e., in the regions potentially dangerous to the carbuncle instability. Accordingly, the numerical viscosity is as small as that of the Roe scheme except near the shock fronts. We show application of the scheme to the magnetohydrodynamical simulations of type II supernova. It is also proved that the scheme is free from the odd-even decoupling
Hanawa Tomoyuki
Matsumoto Toshio
Mikami Hayato
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