Chemical-kinetic prediction of critical parameters in gaseous detonations Page: 4 of 26
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Chemical-Kinetic Prediction of Critical Parameters
in Gaseous Detonations
Charles K. Westbrook
Paul A. Urtiew DE82 007144
Lawrence Livermore National Laboratory
University of California
P.0. Box 808
Livermore, California 94550
A theoretical model including a detailed chemical kinetic reaction
mechanism for hydrogen and hydrocarbon oxidation is used to examine the
effects of variations in initial pressure and temperature on the detonation
properties of gaseous fuel-oxidizer mixtures. Fuels considered include
hydrogen, methane, ethane, ethylene, and acetylene. Induction lengths are
computed for initial pressures between 0.01 and 10.0 atmospheres and initial
temperatures between 200K and 500K. These induction lengths are then
compared with available experimental data for critical energy and critical
tube diameter for initiation of spherical detonation, as well as detonation
limits in linear tubes. Combined with earlier studies concerning variations
in fuel-oxidizer equivalence ratio and degree of dilution with N^, the
model provides a unified treatment of fuel oxidation kinetics in detonations.
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Westbrook, C.K. & Urtiew, P.A. Chemical-kinetic prediction of critical parameters in gaseous detonations, article, January 12, 1982; [Livermore,] California. (digital.library.unt.edu/ark:/67531/metadc1072235/m1/4/: accessed January 23, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.