Small-Amplitude Frequency Behavior of Fluid Lines With Turbulent Flow

[+] Author and Article Information
F. T. Brown

Massachusetts Institute of Technology, Cambridge, Mass.

D. L. Margolis

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Mass.

R. P. Shah

General Electric Co., Schenectady, N. Y.

J. Basic Eng 91(4), 678-693 (Dec 01, 1969) (16 pages) doi:10.1115/1.3571209 History: Received March 13, 1969; Online November 03, 2011


The results of semiempirical analytical and experimental studies of the acoustic frequency response of circular tubes with a mean turbulent flow are given. For the frequency range tested, it is seen that the hypothesis of a time-invariant eddy viscosity profile across the tube predicts the behavior well. For lower frequencies a simple lag in the turbulence profile from its equilibrium values is hypothesized which should be of moderate importance in acoustic behavior and of great importance in large-amplitude behavior. The lag is estimated using the steady-flow results of Goldberg.

Copyright © 1969 by ASME
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