Excitation of Shock Waves in the Passage of Detonation Through the Region of Mixing of Reacting and Inert Gases

A nonstationary problem on the excitation of a plane shock wave as a result of the passage of detonation through the region of mixing of a reacting and an inert gases has been formulated and solved numerically. The formulation of this problem is based on the approximate model defining, with a high accuracy, the change in the molar mass and specific internal energy of the combustion products of hydrocarbons caused by a shift of them from their chemical-equilibrium position. A situation in which, in the region of mixing of the reacting and inert gases, their concentrations change linearly was considered. The influence of the width of the mixing region on the intensity of the excited shock waves and the law of their attenuation was investigated. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.