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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Print: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v2.i1-6.300
pages 478-484

COMPARATIVE RESEARCH OF THE FLAME PROPAGATION IN BORON AND Al, Mg, Zr, Fe DUST CLOUDS

V. G. Shevchuk
Department of Physics, State University, Odessa, Ukraine, 270100
L. V. Boychuk
Department of Physics, State University, Odessa, Ukraine, 270100
S. V. Goroshin
Department of Physics, State University, Odessa, Ukraine, 270100
Yu. N. Kostyshin
Department of Physics, State University, Odessa, Ukraine, 270100

ABSTRACT

Comparative research of the flame propagation in dust clouds of metallic particles of similar sizes in glass tubes were carried out. The gasdynamic regimes and the normal flame velocity, vf, as functions of dust concentration, C and oxygen enrichment have been experimentally investigated. For air mixtures of Mg, Al, Zr, and Fe, vf increases with increase of fuel concentration, as √C. In boron-oxygen mixtures vf does not essentially depend on C; that is probably evidence of the low activational mechanism of boron burning.


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