A Study on the Noise Generation Mechanism in a Circular Air Jet

[+] Author and Article Information
S. K. Tang, N. W. M. Ko

Department of Mechanical Engineering, The University of Hong Kong, Hong Kong

J. Fluids Eng 115(3), 425-435 (Sep 01, 1993) (11 pages) doi:10.1115/1.2910156 History: Received March 10, 1992; Revised December 04, 1992; Online May 23, 2008


An investigation of the noise generation mechanism of turbulent structures in a subsonic air jet has been done theoretically as well as experimentally. Based on the results obtained, it is proposed that the rate of change of velocities of the jet structures plays an important role in the generation of sound in an air jet.

Copyright © 1993 by The American Society of Mechanical Engineers
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