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Numerical Investigation of the Ramjet and Scramjet Operation Regimes of the HIFiRE-2 Combustion Chamber

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Abstract

The processes of supply, mixing, and combustion of the JP-7 fuel in the ramjet and scramjet operation regimes of the combustion chamber in the HIFiRE-2 experiment are simulated numerically in the three-dimensional formulation. A two-component mixture (64% ethylene and 36% methane) is used as an imitation of JP-7 aviation kerosene. The kinetic combustion diagram consisting of four reactions is given. The computed H2O concentrations in the oXY cross-section in the ramjet and scramjet operation regimes are compared with the results of calculations of other authors. An analysis of the temperature and Mach number distributions in various cross-sections of the combustion chamber makes it possible to distinguish the main characteristic features of flow. The pressure distribution on the lower chamber wall is compared with the experimental results.

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Correspondence to R. K. Seleznev.

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Translated by E.A. Pushkar

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Seleznev, R.K. Numerical Investigation of the Ramjet and Scramjet Operation Regimes of the HIFiRE-2 Combustion Chamber. Fluid Dyn 57, 758–767 (2022). https://doi.org/10.1134/S0015462822601164

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  • DOI: https://doi.org/10.1134/S0015462822601164

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