Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.1134/S001050822005007X
Ключевые слова: chapman–jouguet parameters, detonation, detonation velocity, instability, methanol, nitrobenzene, tetranitromethane, von neumann spike
Аннотация: Abstract: Experimental studies of the structure of detonation waves in mixtures of tetranitromethane with methanol and nitrobenzene have been performed. Particle velocity profiles at the arrival of detonation waves at the interface with a water window were measured by a laser interferometer. It has been shown that the flow pattern Показать полностьюin the reaction zone changes sharply at a concentration of diluents in the vicinity of stoichiometry, resulting in a decrease in the amplitude of the von Neumann spike up to its complete disappearance. The detonation waves are stable to the formation of a cellular structure of the front over almost the entire concentration range, except in the range near the limiting values. At the same time, the amplitude values of particle velocity show poor reproducibility from experiment to experiment performed under the same conditions. The obtained experimental dependences of detonation velocity on the concentrations of methanol and nitrobenzene are in good agreement with thermodynamic calculations. © 2020, Pleiades Publishing, Ltd.
Журнал: Combustion, Explosion and Shock Waves
Выпуск журнала: Vol. 56, Is. 5
Номера страниц: 556-565
ISSN журнала: 00105082
Издатель: Pleiades journals