Propagation of Pool Burning

Initial fuel temperature effects on burning rate of pool fire.

The influence of the initial fuel temperature on the burning behavior of n-heptane pool fire was experimentally studied at the State Key Laboratory of Fire Science (SKLFS) large test hall. Circular pool fires with diameters of 100mm, 141 mm, and 200 mm were considered with initial fuel temperatures ranging from 290 K to 363 K. Burning rate and temperature distributions in fuel and vessel wall w...

Inward Propagation of Nuclear-Burning Shells in Merging C-O and He White Dwarfs

We have investigated the consequences of merging double white dwarf systems by calculating evolutionary models of accreting white dwarfs. We have considered two cases; a massive C-O white dwarf of∼ 1M⊙ accreting C-O mixture, and a low mass white dwarf with an initial mass of 0.4M⊙ accreting matter composed mostly of helium. The accretion rate of the C-O white dwarf is assumed to be 1 × 10M⊙y . ...

Existence of an Erythropoitic labile iron pool

The Cellular Burning Regime in Type Ia Supernova Explosions I. Flame Propagation into Quiescent Fuel

We present a numerical investigation of the cellular burning regime in Type Ia supernova explosions. This regime holds at small scales (i.e. below the Gibson scale), which are unresolved in large-scale Type Ia supernova simulations. The fundamental effects that dominate the flame evolution here are the Landau-Darrieus instability and its nonlinear stabilization, leading to a stabilization of th...

The Cellular Burning Regime in Type Ia Supernova Explosions II. Flame Propagation into Vortical Fuel

We investigate the interaction of thermonuclear flames in Type Ia supernova explosions with vortical flows by means of numerical simulations. In our study, we focus on small scales, where the flame propagation is no longer dominated by the turbulent cascade originating from large-scale effects. Here, the flame propagation proceeds in the cellular burning regime, resulting from a balance between...