J. Phys. IV France
Volume 12, Numéro 7, August 2002
Page(s) 89 - 95

J. Phys. IV France
12 (2002) Pr7-89
DOI: 10.1051/jp4:20020270

Quantitative description of lifting and ignition of organic fuel dusts in shock waves

AV. Fedorov and Yu.A. Gosteev

Institute of Theoretical and Applied Mechanics, SB RAS, Novosibirsk 630090, Russia

The Lagrangian mathematical model taking into account the Saffman and aerodynamic interaction forces and based on surrounding film approach is suggested for the description of dust particle lifting and ignition in the gas flow field. On the basis of this model the initial stage of lifting of single particle in the dust-laden layer is adequately described. The model is verified by the comparison with the experimental data on trajectories, dependencies of ignition delay time of the coal particle on the gas temperature behind the shock front.

© EDP Sciences 2002