The stabilization of unstable detonation waves for the mixture of nitromethane/methanol

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Utkin, A.V.^1,2 ; Koldunov, S.A.^1 ; Mochalova, V.M.^1,2 ; Torunov, S.I.^1 ; Lapin, S.M.^3

Institute of Problems of Chemical Physics, Russian Academy of Sciences, Academician Semenov Avenue 1, Chernogolovka, Moscow Region

142432, Russia^1

Tomsk State University, Lenina Avenue 36, Tomsk

634050, Russia^2

Lomonosov Moscow State University, Leninskie Gory 1, Moscow

119991, Russia^3

关键词: Amplitude of oscillation;    Detonation waves;    Diethylenetriamine;    Flow Stabilization;    Laser interferometer;    Measurements of;    Nitromethane;    Particle velocity profile;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012053/pdf
DOI  :  10.1088/1742-6596/653/1/012053

来源: IOP

【 摘 要 】

Using a laser interferometer VISAR the measurements of the particle velocity profiles in detonation waves for nitromethane/methanol mixtures with additions of a sensitizer diethylenetriamine were conducted. It is shown that the detonation front in a mixture of nitromethane/methanol is unstable and sensitizer is an effective method for the flow stabilization. If the diluent concentration is less than 10%, the detonation front is stabilized by adding of 1% diethylenetriamine. At higher concentrations of methanol, the sensitizer does not reject instability, but the amplitude of oscillations decreases in several times. An increase of the limit concentration of methanol at the addition of diethylenetriamine to the mixture was found.