The Journal of Chemical Physics · 1958 · 91 citations · 8 references
Natural SciencesPhysicsComputational PhysicsDifferential EquationsFluid DynamicsChemical Kinetics ModelingDetonation TheoryGas-phase Reaction KineticsKinetic ModelingShock WavesChapman-jouguet DetonationDetonationDetonation DynamicsDetonation PhysicsDetonation Wave PropagationDetonation WavesNumerical Modeling Of DetonationShock Dynamics
The study builds on Kistiakowsky and Kydd’s 30 mm Hg measurement of detonation wave profiles. The authors present a numerical method that integrates arbitrary kinetic systems under steady‑state shock hydrodynamic constraints. For a 2H₂+O₂+Xe mixture at 30 mm Hg, the computed detonation profile agrees qualitatively with experiment and demonstrates that a frozen‑sound‑speed definition of the Chapman‑Jouguet state is unrealistic.
A numerical procedure for the integration of an arbitrary system of kinetic equations subject to the constraints imposed by steady state shock hydrodynamics is described. The detonation profile has been calculated for a 2H2+O2+Xe mixture at an initial pressure of 30 mm Hg. These conditions correspond to those used by Kistiakowsky and Kydd in a measurement of the wave profile. The calculated profile is in qualitative agreement with the measured one. The calculation provides empirical evidence that a frozen sound speed definition of the Chapman-Jouguet state cannot correspond to reality.
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Vibrational relaxation in oxygen and nitrogen
V.H. Blackman · Journal of Fluid Mechanics · 1956 · 263 citations