Multigrid methods applied to an explosion at a plane density interface

Details Multigrid methods applied to an explosion at a plane density interface Multigrid methods applied to an explosion at a plane density interface

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.251...93a&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 251, July 1, 1991, p. 93-104.

Statistics

Computation

11

Computational Astrophysics, Molecular Clouds, Multigrid Methods, Space Density, Supernovae, Flux Vector Splitting, Stellar Winds

Scientific paper

The astrophysical problem of a supernova explosion at the edge of a dense molecular cloud or a diffuse stellar wind bubble is simplified to that of a point explosion at a plane density interface separating two uniform media with density ratio alpha. This approximation gives rise to a self-similar flow which can be found by transforming the hydrodynamic equations to the similarity plane and looking for the steady solution there. A flux vector splitting scheme, together with the use of multigrid techniques provides us with a robust and eficient method of finding this steady solution. The high-resolution results so produced reveal the formation of a supersonic jet along the symmetry axis when the density ratio is large enough.

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