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Chemically Nonequilibrium Flows of Nitrocellulose Fuel Combustion Products in Aircraft Engine Nozzles

  • AIRCRAFT AND ROCKET ENGINE THEORY
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Abstract

A modified mathematical model of chemically nonequilibrium heterogeneous flows in nozzles is proposed. The reaction mechanism reduction procedure includes the DRGEP method and the adaptive threshold engagement method using the concepts of “large molecules” and aggregated inert substance. The proposed procedure was used to calculate the flow of the nitrocellulose fuel combustion products. A significant reduction in the initial reaction mechanism was achieved with an acceptable accuracy in predicting the specific impulse and the composition of the working fluid.

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Authors and Affiliations

  1. Tupolev Kazan National Research Technical University, ul. Karla Marksa 10, 420111, Kazan, Tatarstan, Russia

    V. G. Kryukov & A. L. Abdullin

  2. Kazan State Power Engineering University, ul. Krasnosel’skaya 51, 420066, Kazan, Tatarstan, Russia

    A. V. Demin

Authors
  1. V. G. Kryukov
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  2. A. L. Abdullin
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  3. A. V. Demin
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Corresponding author

Correspondence to A. V. Demin.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Aviatsionnaya Tekhnika, 2021, No. 3, pp. 133 - 139.

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Kryukov, V.G., Abdullin, A.L. & Demin, A.V. Chemically Nonequilibrium Flows of Nitrocellulose Fuel Combustion Products in Aircraft Engine Nozzles. Russ. Aeronaut. 64, 503–510 (2021). https://doi.org/10.3103/S1068799821030181

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  • DOI: https://doi.org/10.3103/S1068799821030181

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