Effect of Nozzle Shape on Amplitude of Well Acoustic Emitter Generation


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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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