The Physics of Flames in Type Ia Supernovae

Abstract

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.

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

References in corpus (7)

• Type Ia Supernova Explosion Models
• Thermonuclear Supernovae: Simulations of the Deflagration Stage and Their Implications
• Type Ia Supernova Explosion: Gravitationally Confined Detonation
• The Thermonuclear Explosion Of Chandrasekhar Mass White Dwarfs
• Full-star Type Ia supernova explosion models
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Cited by in corpus (7)

• Off-center ignition in type Ia supernova: I. Initial evolution and implications for delayed detonation
• Propagation of the First Flames in Type Ia Supernovae
• Pulsating reverse detonation models of Type Ia supernovae. I: Detonation ignition
• A Three-Dimensional Picture of the Delayed-Detonation Model of Type Ia Supernovae
• Rayleigh-Taylor Unstable Flames -- Fast or Faster?
• Local Ignition in Carbon/Oxygen White Dwarfs -- I: One-zone Ignition and Spherical Shock Ignition of Detonations
• Turbulence-Flame Interactions in Type Ia Supernovae