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Research of annular nozzle thrust in the turbulent outflow condition
- Authors: Levin V.A.1,2, Afonina N.E.1, Khmelevsky A.N.1
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Affiliations:
- Institute of Mechanics, Lomonosov Moscow State University
- Institute for Automatics and Control Processes of the Far Eastern Branch of the Russian Academy of Sciences
- Issue: Vol 522, No 1 (2025)
- Pages: 51-57
- Section: МЕХАНИКА
- URL: https://jdigitaldiagnostics.com/2686-7400/article/view/689520
- DOI: https://doi.org/10.31857/S2686740025030089
- EDN: https://elibrary.ru/PVXUYI
- ID: 689520
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Abstract
The results of calculations and measurements of the annular nozzle thrust force in a turbulent outflow regime of high-temperature combustion products are presented. Calculations are carried out on the basis of the Favre-averaged Navier–Stokes equations and the Boussinesq approximation for describing the processes of turbulent transfer. The analysis of exhaust nozzle form of annular device with internal deflector on the value of developed thrust is performed. By results of comparison of calculated and corresponding measured values of annular nozzle thrust it is performed validation of calculated model. It is established, that in the cavity of the inner deflector a “stationary” turbulent regime with high values of the turbulent transfer parameters is established.
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About the authors
V. A. Levin
Institute of Mechanics, Lomonosov Moscow State University; Institute for Automatics and Control Processes of the Far Eastern Branch of the Russian Academy of Sciences
Author for correspondence.
Email: afonina@imec.msu.ru
Academician of the RAS
Russian Federation, Moscow; VladivostokN. E. Afonina
Institute of Mechanics, Lomonosov Moscow State University
Email: afonina@imec.msu.ru
Russian Federation, Moscow
A. N. Khmelevsky
Institute of Mechanics, Lomonosov Moscow State University
Email: afonina@imec.msu.ru
Russian Federation, Moscow
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