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Three-dimensional numerical modelling of convective instability by supernova explosion with nested grids scheme on multiprocessors systems. (English) Zbl 1134.85307

Hou, Thomas Y. (ed.) et al., Hyperbolic problems: Theory, numerics, applications. Proceedings of the ninth international conference on hyperbolic problems, Pasadena, CA, USA, March 25–29, 2002. Berlin: Springer (ISBN 3-540-44333-9/hbk). 899-907 (2003).
From the summary: We carried out three dimensional hydrodynamical simulations to study development large scale convective instability into a protoneutron star by supernova explosion II type. The initial state is rotating protoneutron star with excess entropy at the centre. On the last stage of collapse of the iron core of a star the process of nonequilibrium neutronization of matter provides high entropy and great mean energy of the neutrinos in the central part of the protoneutron star. The hydrodynamically unstable configuration of a protoneutron star is formed. The statement of the problem consists in studying the development of the nonuniformity scale of the entropy distribution.
For the entire collection see [Zbl 1024.00068].

MSC:

85A15 Galactic and stellar structure
65M06 Finite difference methods for initial value and initial-boundary value problems involving PDEs
76M20 Finite difference methods applied to problems in fluid mechanics
85-08 Computational methods for problems pertaining to astronomy and astrophysics
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