Effect of Nozzle Shape on Amplitude of Well Acoustic Emitter Generation
- Authors: Abdrashitov A.A.1, Marfin E.A.1, Chachkov D.V.2, Chefanov V.M.3
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Affiliations:
- Kazan Scientific Center
- Kazan Branch, Joint Computer Center
- Tupolev Kazan National Research Technical University
- Issue: Vol 64, No 4 (2018)
- Pages: 492-502
- Section: Atmospheric and Aeroacoustics
- URL: https://journal-vniispk.ru/1063-7710/article/view/186636
- DOI: https://doi.org/10.1134/S1063771018030016
- ID: 186636
Cite item
Abstract
An experimental study of the generation of pressure fluctuations in a well acoustic emitter with nozzles of various shapes has been carried out. The effect of a smooth nozzle inlet section on the generation amplitude, the optimum jet length, and the outlet diameter has been studied. The formation of a region of reverse currents connecting to the cavity in the nozzle between the channel wall and the jet periphery has been considered. A significant increase in the generation amplitude produced at the smooth nozzle inlet and the formation of a uniform velocity profile in the nozzle channel have been observed.
About the authors
A. A. Abdrashitov
Kazan Scientific Center
Author for correspondence.
Email: abdary@mail.ru
Russian Federation, Kazan, 420111
E. A. Marfin
Kazan Scientific Center
Email: abdary@mail.ru
Russian Federation, Kazan, 420111
D. V. Chachkov
Kazan Branch, Joint Computer Center
Email: abdary@mail.ru
Russian Federation, Moscow, 119334
V. M. Chefanov
Tupolev Kazan National Research Technical University
Email: abdary@mail.ru
Russian Federation, Kazan, 420111
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