Showing papers by "George F. Carrier published in 1994"
TL;DR: In this article, the structure of a steady laminar isobaric planar deflagration propagating through a uniform mixture of pressed powders is analyzed, where the powders react rapidly to generate copious gas, as well as solid (and possibly molten) products of combustion.
Abstract: ABSTRACT—analyze the structure of a steady laminar isobaric planar deflagration propagating through a uniform mixture of pressed powders. Uniformity here refers to spatial invariance in the stoichiometric ratio for a volume with dimension large relative to the characteristic particle size. The powders reacts rapidly to generate copious gas, as well as solid (and possibly molten) products of combustion. Specifically, we seek the rate of flame propagation through a mixture of sodium azide (NaN3) and hematite–derived iron oxide (Fe2O3) for practically interesting stoichiometries, for which the oxide is present in excess in the pristine pyrotechnic. For a uniform grain, the hot–boundary products are nitrogen gas (N 2 ) and the solid-phase species iron (Fe) and sodium oxide (Na2O), We obtain the flame–propagation rate as a function of stoichoirnetry and other mixture properties for a two–step model: (1) a roughly energy-neutral decomposition of the sodium azide occurs at a relatively low temperature, ...
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