The Physics of Flames in Type Ia Supernovae

Details The Physics of Flames in Type Ia Supernovae The Physics of Flames in Type Ia Supernovae

2005-07-01

arxiv.org/abs/astro-ph/0507040v1

J.Phys.Conf.Ser.16:405-409,2005

Astronomy and Astrophysics

Astrophysics

To appear in the Proceedings of the SciDAC 2005 meeting, IOP press (http://www.iop.org). Some figures degraded in quality to c

Scientific paper

10.1088/1742-6596/16/1/056

We extend a low Mach number hydrodynamics method developed for terrestrial combustion, to the study of thermonuclear flames in Type Ia supernovae. We discuss the differences between 2-D and 3-D Rayleigh-Taylor unstable flame simulations, and give detailed diagnostics on the turbulence, showing that the kinetic energy power spectrum obeys Bolgiano-Obukhov statistics in 2-D, but Kolmogorov statistics in 3-D. Preliminary results from 3-D reacting bubble calculations are shown, and their implications for ignition are discussed.

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