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Effect of the gasdynamics of a two-regime combustor on the power characteristics of a model with combustion

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Combustion, Explosion and Shock Waves Aims and scope

Abstract

Methods are analyzed for increasing the propulsive thrust-efficiency characteristics of the internal duct of a gasdynamic model with combustion by means of boosting the operational process stage. At a Mach number 5 and a stagnation temperature between 1200 and 1500 K and 35–40 MPa stagnation pressures we investigated the effect of the degree of combustor expansion Fc on the propulsive thrust-efficiency characteristics of a small model operating on hydrogen fuel with an air excess coefficient of 1. The calculated predictions of the increase in the model characteristics on account of a reduced Fc were confirmed experimentally. When the combustor operates in a regine, where the heat is being supplied to a subsonic flow, it is possible on priciple to reduce Fc to a minimum determined by the flow gas thermodynamics in the combustor.

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Authors
  1. V. K. Baev
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  2. V. V. Shumskii
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Additional information

Institute of Theoretical and Applied Mechanics of the Siberian Division of the Russian Academy of Science, 630090 Novosibirsk. Translated from Fizika Goreniya i Vzryva,31, No. 6, pp. 49–63.

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Baev, V.K., Shumskii, V.V. Effect of the gasdynamics of a two-regime combustor on the power characteristics of a model with combustion. Combust Explos Shock Waves 31, 661–670 (1995). https://doi.org/10.1007/BF00744971

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  • DOI: https://doi.org/10.1007/BF00744971

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