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

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Combustion, Explosion, and Shock Waves Aims and scope

Abstract

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 \(\mu\)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 \(\pm\)5%. The calculation results are in good agreement with the experimental data.

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Authors and Affiliations

  1. Lavrent’ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    I. S. Batraev, E. S. Prokhorov & V. Yu. Ul’yanitskii

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  1. I. S. Batraev
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  2. E. S. Prokhorov
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  3. V. Yu. Ul’yanitskii
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Correspondence to I. S. Batraev.

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Translated from Fizika Goreniya i Vzryva, 2021, Vol. 57, No. 5, pp. 86-95.https://doi.org/10.15372/FGV20210508.

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Batraev, I.S., Prokhorov, E.S. & Ul’yanitskii, V.Y. Acceleration of Dispersed Particles by Gas Detonation Productions in an Expanding Channel. Combust Explos Shock Waves 57, 588–596 (2021). https://doi.org/10.1134/S0010508221050087

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  • DOI: https://doi.org/10.1134/S0010508221050087

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