Carbon particle phase transformation kinetics in detonation waves

A much simplified model of nonequilibrium soot phase mixture kinetics is derived for use in hydrodynamic computation. This model is based on a review of existing shock and detonation soot recovery experiments as well as the available data on the carbon phase diagram. It yields a time and pressure–te...

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Bibliographic Details
Published in:Journal of applied physics 2000-07, Vol.88 (2), p.683-690
Main Authors: Viecelli, J. A., Ree, F. H.
Format: Article
Language:English
Subjects:
CARBON
COMPUTERIZED SIMULATION
DETONATION WAVES
GRAPHITE
HYDRODYNAMIC MODEL
MATERIALS SCIENCE
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
SHOCK WAVES
SOOT
THEORETICAL DATA
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Summary:A much simplified model of nonequilibrium soot phase mixture kinetics is derived for use in hydrodynamic computation. This model is based on a review of existing shock and detonation soot recovery experiments as well as the available data on the carbon phase diagram. It yields a time and pressure–temperature path dependent value for the nonequilibrium diamond fraction of the soot mixture. Approximate methods for computing the detonation products pressure for the kinetics derived mixture of diamond and graphite are discussed. The proposed model increase in hydrodynamic computation cost is negligible.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.373721