Numerical investigation of detonation initiation in shock waves

Аuthors

Bedarev I. A.^*, Fedorov A. V.^**

Federal State Budgetary Institute of Science Khristianovich Institute of Theoretical and Applied Mechanics Siberian Branch of the Russian Academy of Sciences, 4/1, Institutskaya str., Novosibirsk, 630090, Russia

*e-mail: dmitr@ispms.tsc.ru
**e-mail: fedorov@itam.nsc.ru

Abstract

In the work numerical simulation of formation and propagation of a detonation wave in a reacting mixture of hydrogen and oxygen is presented. One-dimensional non-viscous and two-dimensional viscous flows of a reacting mixture are investigated. As mathematical model gasdynamics equations are implemented, taking into account heat generation at the expense of chemical reactions. Various detailed kinetic schemes are applied for the chemical transformations' modeling. Adaptive grids were implemented for the numerical technique. Mathematical model and numerical algorithm are verified on experimental data and some tests. Influences of 2-D and viscosity on detonation parameters in case of a detonation initiation in reflected shock waves are analyze.

Keywords:

mathematical modeling, detonation, adaptive mesh