J. Phys. IV France
Volume 12, Numéro 7, August 2002
Page(s) 113 - 119

J. Phys. IV France
12 (2002) Pr7-113
DOI: 10.1051/jp4:20020273

Modelling of flow and combustion behind shock waves propagating along dust layers in long ducts

V.P. Korobeinikov1, I.V. Semenov1, I.S. Menshov2, R. Klemens3, P. Wolanski3 and P. Kosinski3

1  Institute for Computer Aided Design, RAS, Moscow, Russia
2  Institute of Applied Mathematics, RAS, Moscow, Russia
3  Warsaw University of Technology, Warsaw, Poland

The processes of coal dust-air mixtures motion, ignition, and combustion behind shock waves have been numerically studied using physically justified types of flow description. In the paper, several aspects of unsteady processes behind shock waves propagating in long ducts (tunnels) with thin layers of dust and filled with air are studied. Numerical methods have been developed to solve the considered problems. Some examples of calculations have been presented: dust entrainment and dispersion from dense layers behind propagating shock waves, as well as dispersion, ignition and combustion of dusty mixtures due to a local gas explosion in a long tube.

© EDP Sciences 2002