Quasi-one-dimensional calculation of detonation in a channel of variable cross section

Abstract

The nonsteady flow behind a compressed DW propagating in a channel of variable cross section is investigated numerically in a quasi-one-dimensional approximation. The basis for the applicability of this approximation is that the results of onedimensional calculations and experiment for the shock-wave parameters in conical convergent channels are in good agreement. The behaviour of the reacting medium behind the DW from is described by a system of gasdynamic equations in a quasi-one-dimensional approximation, taking account of the shift in chemical equilibrium of the PD, the loss due to friction, and heat transfer with the tube wall. Results of the calculations are shown. From the algorithm developed here, a quasi-one-dimensional calculation of the detonation of the mixture C/sub 2/H/sub 2/ + 2.50/sub 2/ in a channel of variable cross section has been performed.