J. Phys. IV France
Volume 12, Numéro 7, August 2002
Page(s) 97 - 104

J. Phys. IV France
12 (2002) Pr7-97
DOI: 10.1051/jp4:20020271

Numerical simulations of dust lifting under the action of shock wave propagating along the near-wall layer

AV. Fedorov1, 2 and N.N. Fedorova1, 2

1  Institute of Theoretical and Applied Mechanics, SB RAS, Novosibirsk 630090, Russia
2  Novosibirsk State University of Civil Engineering and Architecture, Liningradskaya St. 113, Novosibirsk 630008, Russia

The paper focuses on numerical simulation of wave processes observed in near-wall fluidized layer under action of normal shock wave. The unsteady process of interaction is described for various shock wave intensities and layer densities. It is shown, that shock wave intensity increases significantly in dense-layer, and the gain factor does not depend on the Mach number of shock wave and defined only by density ratio. The regular and Mach schemes of shock reflections are observed in computations that lead to a principally distinguish scenarios of instability development in a dusty layer.

© EDP Sciences 2002