Propagation of spinning acoustic modes in partially choked converging ducts
Files
TR Number
Date
1982-04-01
Journal Title
Journal ISSN
Volume Title
Publisher
Acoustical Society of America
Abstract
A computer model based on the wave-envelope technique is used to study the propagation of spinning acoustic modes in converging hard-walled and lined circular ducts carrying near sonic mean flows. The results show that with increasing spinning mode number the intensification of the acoustic signal at the throat decreases for upstream propagation. The influence of the throat Mach number, frequency, boundary-layer thickness, and liner admittance on the propagation of spinning modes is considered. 1982 Acoustical Society of America
Description
Keywords
Acoustic modeling, Acoustic signal processing, Computer modeling, Duct flows, Mach numbers
Citation
Nayfeh, A. H., Kelly, J. J., & Watson, L. T. (1982). Propagation of spinning acoustic modes in partially choked converging ducts. Journal of the Acoustical Society of America, 71(4), 796-802. doi: 10.1121/1.387605