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Investigation of ignition of hydrogen–oxygen mixtures within the range of temperatures from 700 to 2500 K

  • Heat and Mass Transfer and Physical Gasdynamics
  • Published:
High Temperature Aims and scope

Abstract

The results of numerical modeling of the ignition process of hydrogen–oxygen mixtures diluted with argon at temperatures of 700–2500 K within wide ranges of the initial gas parameters are presented. The time evolutions of the concentration of the electron-excited radical OH* and other components, as well as the strength of the radical total radiation on wavelengths about λ = 306.4 nm, are calculated. Their peculiarities are described and the correspondence between the measured radiation strength scans obtained in the experiments by the emission method and those calculated in the process of modeling is determined. The temperatures upon which the mixtures ignite are determined. The dependences of the time delay of the ignition of the mixture on the pressure and component composition are found. The relationships are used to obtain the temperature dependence of the ignition time delay reduced to a preliminarily chosen pressure and gas composition.

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Authors and Affiliations

  1. Institute of Mechanics, Moscow State University, Moscow, 119192, Russia

    G. D. Smekhov & O. P. Shatalov

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  1. G. D. Smekhov
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  2. O. P. Shatalov
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Correspondence to G. D. Smekhov.

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Original Russian Text © G.D. Smekhov, O.P. Shatalov, 2016, published in Teplofizika Vysokikh Temperatur, 2016, Vol. 54, No. 1, pp. 81–91.

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Smekhov, G.D., Shatalov, O.P. Investigation of ignition of hydrogen–oxygen mixtures within the range of temperatures from 700 to 2500 K. High Temp 54, 89–98 (2016). https://doi.org/10.1134/S0018151X16010119

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  • DOI: https://doi.org/10.1134/S0018151X16010119

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