Numerical study of detonation waves in a monofuel-gas mixture in sharply expanding pipes

Abstract

Mathematical simulation of the propagation mechanisms of combustion waves and heterogeneous detonation in sharply expanding pipes was performed using the equations of twodimensional axisymmetric unsteady motion of a reacting mixture of a gas and monofuel particles. The influence of the main determining parameters of the gas-particle mixture and the pipeline on the propagation of nonstationary detonation waves was studied. Dependences of the critical ratio of the pipe diameters of the composite pipeline on the relative mass content of monofuel particles of different sizes are given.

Attenuation of Detonation Waves in Layers of Homogeneous and Inhomogeneous Monodisperse Gas Suspension in Sharply Expanding Pipes

“…In [3,8] the results of a numerical study of the patterns of propagation of detonation waves in mono-and polydisperse (two-fraction) gas suspensions of unitary fuel in sharply expanding pipes are presented. A comparative analysis of the effect of mono-and polydispersity of unitary fuel particles on the attenuation of detonation waves is carried out.…”

“…In this paper, which is a logical continuation of [3,8] the results of the influence of the diameter and spatially inhomogeneous distribution of the concentration of particles of unitary fuel on the reduction of the maximum pressure on the wall are presented.…”