ID#: 54
Abstract Title: Shock and Detonation Wave Propagation Along Reactive Particle Cloud in Channel
Session Title: Dusty Shocks/Detonations
Session Date: 7/31/01
Session Start Time: 3:40 PM
Contributing Author: Fedorov, A.V.
Organization: Institute of Theoretical and Applied Mechanics SD RAS
Country: Russia
Authors: A.V. Fedorov, T.A. Khmel'
Short Abstract: Shock and detonation wave propagation in a channel partly filled with a cloud of solid reactive particle aerosuspension is investigated. A plane shock wave propagating along the channel is considered as an initiation factor. The problem in studied on the basis of numerical modelling of two-dimensional two-phase reactive media flow. Te calculations show that the SW reflection of the plane of symmetry can be regular or with the Mach stem appearing. If the relaxation zone widths are comparable with the transverse cloud size then the reflected shock wave adjoining to the Mach stem is smeared. The particle cloud behind the passed SW is compressed in transversal direction. The region of the flow turning has a triangular shape. The vortex structure leads to the cloud spreading. At strong incident SW the particles ignite and combustion zone appears generating a transversal shock wave. The transversal shock wave propagation and reflections lead to the leading shock wave periodic fluctuations. A combined shock/detonation wave developing takes place in the channel. The shock wave in gas joining with the wave of heterogeneous detonation in the particle cloud propagates in quasistationary regime.