Geodesic
Experimental and mathematical simulation of auto-ignition of iron micro particles
Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika, Tome 5 (2013) no. 2, pp. 21-30 Cet article a éte moissonné depuis la source Math-Net.Ru

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The experimental and numerical studies of autoignition and burning of iron microparticles in oxygen were introduced. Parameters of high-temperature gas environment were created by rapid compression machine. Powders with a particle size 1–125 microns were studied at the oxygen pressure of 0,5–28 MPa and the temperature of 500–1100 K. Ignition delay time was measured by registration of radiation from the side wall of the combustion chamber and by measuring the pressure on the end wall. Critical auto-ignition conditions are determined according to size of the particles, oxygen temperature and pressure. For description of ignition mechanisms a punctual semiempirical simulator was introduced. The simulator gave the opportunity to describe the experimental data on dependence of ignition delay time of iron particles on the ambient temperature, taking into account correlations of critical ignition temperatures with pressure.
Keywords: iron micro particles; oxygen; rapid compression machine; ignition delay time; mathematical simulation. 
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     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matematika, mehanika, fizika},
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V. V. Leschevich; O. G. Penyazkov; J.-C. Rostaing; A. V. Fedorov; A. V. Shulgin. Experimental and mathematical simulation of auto-ignition of iron micro particles. Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika, Tome 5 (2013) no. 2, pp. 21-30. http://geodesic.mathdoc.fr/item/VYURM_2013_5_2_a2/

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