Reproducibility of Detonation Parameters of Mixtures of Tetranitromethane with Methanol and Nitrobenzene

A VISAR multipoint laser interferometer is used to study a detonation wave structure in mixtures of tetranitromethane with methanol and nitrobenzene. A poor reproducibility of particle velocity profiles is observed in different experiments with a fixed composition of mixtures. As shown by simultaneo...

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Bibliographic Details
Published in:Combustion, explosion, and shock waves explosion, and shock waves, 2021-05, Vol.57 (3), p.343-349
Main Authors: Utkin, A. V., Mochalova, V. M., Rykova, V. E.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Classical Mechanics
Control
Detonation waves
Dimensional stability
Dynamical Systems
Engineering
Methanol
Nitrobenzene
Parameters
Perturbation
Physical Chemistry
Physics
Physics and Astronomy
Reproducibility
Velocity distribution
Vibration
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Summary:A VISAR multipoint laser interferometer is used to study a detonation wave structure in mixtures of tetranitromethane with methanol and nitrobenzene. A poor reproducibility of particle velocity profiles is observed in different experiments with a fixed composition of mixtures. As shown by simultaneous recording of wave profiles at several points of the detonation front and different cross sections of the sample, the flow is one-dimensional and stable with respect to longitudinal perturbations. This means that steady detonation is observed in each experiment, and its parameters differ from shot to shot. Aside from the lack of reproducibility of particle velocity profiles, nonclassical detonation is recorded in the mixtures under study, which is observed as the absence of a von Neumann spike in a reaction zone. A possible relationship between these two phenomena is discussed.
ISSN:0010-5082
1573-8345
DOI:10.1134/S0010508221030096