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Numerical simulation of the structure of two-dimensional gaseous detonation of an $\mathrm{H}_2$–$\mathrm{O}_2$–$\mathrm{Ar}$

A. V. Trotsyuk

Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk

Abstract: A two-dimensional structure of detonation waves in an $2\mathrm{H}_2$ + $\mathrm{O}_2$ + $X\mathrm{Ar}$ mixture is numerically studied in a wide range of initial pressures and degrees of dilution. Good qualitative agreement of the numerical results with experimental data is obtained. The effect of the method of initiation (by one or several sites, symmetric or asymmetric) on the steady structure of detonation waves is studied. The changes in the wave structure induced by variation of the channel width are examined. It is shown that the behavior of the two-dimensional wave structure is qualitatively different for mixtures with $X=0$ and $X>0$.

UDC: 534.222

Received: 05.01.1999
Accepted: 15.03.1999

 English version: Combustion, Explosion and Shock Waves, 1999, 35:5, 549–558

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