On the necessity of the correct model of heat release for simulation of the multi-front structure of the detonation wave

I. A. Zaev, I. A. Kirillov

RRC Kurchatov Institute, Moscow

Abstract: Results of the simulation of the multi-headed cellular structure of the detonation wave in the diluted hydrogen-oxygen mixtures are described. The goal of the work is to assess the sensitivity of the results of the two-dimensional simulations to the parameters of the two-stage model of hydrogen-oxygen combustion, which determine chemical kinetics of the heat release. Based on the results of the simulations it is concluded, that earlier proposed modification of the two-stage model of hydrogen-oxygen combustion as well as the method of evaluation of its parameters are important and provide realistic simulation of the detonation wave structure in the diluted hydrogen-oxygen mixtures.

Keywords: hydrogen, detonation cell, chemical kinetics, two-stage model.

UDC: 536.09

Received: 10.11.2009

 English version: Mathematical Models and Computer Simulations, 2011, 3:2, 225–233

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