Abstract
Advanced methods of computational fluid dynamics are used for quasi steady estimation of the effect caused by injection of ablation products of a heat shield protecting a submerged contoured nozzle on discharge characteristics of the engine. Limits of discharge coefficient variation are determined depending on the injection intensity of degradation products and flow stagnation parameters that are involved in calculation of discharge coefficient. The influence of the temperature of combustion products on discharge coefficient is demonstrated.
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ACKNOWLEDGEMENTS
The study was financially supported by the Russian Foundation for Basic Research (project no. 19-38-90277).
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Aviatsionnaya Tekhnika, 2021, No. 2, pp. 129 - 135.
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Kirillova, A.N., Sabirzyanov, A.N. Effect of the Injection of Heat Shield Degradation Products on the Discharge Coefficient of the Submerged Nozzle. Russ. Aeronaut. 64, 314–321 (2021). https://doi.org/10.3103/S1068799821020203
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DOI: https://doi.org/10.3103/S1068799821020203