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Spectral Structure of Thrust and Gas Pressure Pulsations Signals in Nozzles with Deflectorстатья
- Авторы: Levin V.A., Afonina N.E., Gromov V.G., Manuylovich I.S., Smekhov G.D., Khmelevsky A.N., Markov V.V.
- Сборник: Advances in Pulsed and Continuous Detonation / Edited by S.M.Frolov
- Год издания: 2019
- Место издания: TORUS PRESS Moscow
- Первая страница: 101
- Последняя страница: 115
- Аннотация: https://elibrary.ru/item.asp?id=41220309 eLIBRARY ID: 41220309, DOI: 10.30826/ICPCD201807 Book: 448 p. Print ISBN 978-5-94588-244-7 c TORUS PRESS, 2019 Complex results in experimental and numerical flow dynamics research and spectra signals of thrust force and gas pressure pulsations in annular and linear dual slotted nozzles are presented. The experiments were performed in a pulsed aerodynamic setup using the combustion products of acetylene-air mixture as working gas. Calculations of viscous flow are based on the Navier-Stokes equations for multicomponent reactive gaseous medium using a single-temperature chemical nonequilibrium model. The results of comparison of calculated and measured spectral structure of pulsing pressure signals are presented. The dependences of frequency and amplitude of pressure, thrust force, and flow parameters in annular and linear dual slotted nozzles from the size of their critical section and the deflector form are established. The investigations were carried out according to the research plan of the Institute of Mechanics of M. V. Lomonosov Moscow State University, investigations were partially financially supported by the Grant of the Ministry of Education and Science of the Russian Federation (Contract No. 14.G39.31.0001 dated 13.02.2017) and Grants of the Russian Foundation for Basic Research (No. 16-29-01092 and No. 1801-00883).
- Добавил в систему: Левин Владимир Алексеевич