Acceleration of Dispersed Particles by Gas Detonation Productions in an Expanding Channel

This paper describes an experimental study and a quasi-one-dimensional calculation of acceleration of dispersed particles by gas detonation products in an expanding channel. The calculations show the possibility of a significant increase in the velocity of powder particles due to the conical expansi...

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Bibliographic Details
Published inCombustion, explosion, and shock waves Vol. 57; no. 5; pp. 588 - 596
Main Authors Batraev, I. S., Prokhorov, E. S., Ul’yanitskii, V. Yu
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2021
Springer Nature B.V
Subjects
Acceleration
Classical and Continuum Physics
Classical Mechanics
Control
Dynamical Systems
Engineering
Gas detonation
Mathematical analysis
Physical Chemistry
Physics
Physics and Astronomy
Vibration
detonation products in an expanding channel
photosensor
gas detonation
recording of radiation
acceleration of dispersed particles
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Summary:This paper describes an experimental study and a quasi-one-dimensional calculation of acceleration of dispersed particles by gas detonation products in an expanding channel. The calculations show the possibility of a significant increase in the velocity of powder particles due to the conical expansion of a detonation channel. For particles with sizes of 30–40  m at cone angles of 2–4°, the maximum velocity increase reaches 35–60%. A method is developed for fixing the radiation of a packet of dispersed particles accelerated in a detonation channel by a photosensor, which makes it possible to measure the particle velocity with an accuracy of  5%. The calculation results are in good agreement with the experimental data.
ISSN:0010-5082
1573-8345
DOI:10.1134/S0010508221050087