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Updated: Jul 18, 2026

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
Published on: December 14, 2017
Thermonuclear supernovae: simulations of the deflagration stage and their implications
Vadim N Gamezo1, Alexei M Khokhlov, Elaine S Oran
1Laboratory for Computational Physics and Fluid Dynamics, Naval Research Laboratory (NRL), Center for Computational Science, NRL, Washington, DC 20375, USA. gamezo@lcp.nrl.navy.mil
Abstract:
Large-scale, three-dimensional numerical simulations of the deflagration stage of a thermonuclear supernova explosion show the formation and evolution of a highly convoluted turbulent flame in the gravitational field of an expanding carbon-oxygen white dwarf. The flame dynamics are dominated by the gravity-induced Rayleigh-Taylor instability that controls the burning rate. The thermonuclear deflagration releases enough energy to produce a healthy explosion. The turbulent flame, however, leaves large amounts of unburned and partially burned material near the star center, whereas observations that imply these materials are present only in outer layers. This disagreement could be resolved if the deflagration triggers a detonation.
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