Abstract
The present work is devoted to the experimental study of a high-speed jet exhausting from a model dual-stream jet nozzle which was performed using non-contact (shadow visualization) and probing (Pitot pressure tube) methods for measuring gas-dynamic parameters. Azimuthal non-uniformity of the pressure distribution, whose magnitude in the external duct is much higher than that in the internal one, is revealed. The cause for the formation of the 3D flow structure is related to the supporting pylons installed inside the nozzle contours and with the formation of a transonic flow mode in the external duct.
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The research was carried out within the framework of the Program of Fundamental Scientific Research of the state academies of sciences in 2013–2020 (Project No. AAAA-A17-117030610137-0) using the equipment available at the Joint Access Center “Mechanics” of ITAM SB RAS.
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Zapryagaev, V.I., Kiselev, N.P. & Pivovarov, A.A. Formation of the three-dimensional structure of a high-speed jet exhausting from a model dual-stream jet nozzle. Thermophys. Aeromech. 27, 23–33 (2020). https://doi.org/10.1134/S0869864320010023
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DOI: https://doi.org/10.1134/S0869864320010023