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Buoyant Burning Bubbles in Type Ia Supernovae

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Flame ignition in type Ia supernovae leads to isolated bubbles of burning buoyant fluid. As a bubble rises due to gravity, it becomes deformed by shear instabilities and transitions to turbulent evolution. This simulation shows the temperature field of such a bubble burning in a uniform background. The simulation was conducted using a specialized low Mach number hydrodynamics code for thermonuclear flames. Adaptive mesh refinement was used to focus resolution on the bubble, reducing computational expense. The effective resolution was 4096^3. Research and Visualization courtesy of Andy Aspden and John Bell (LBNL). (More information)