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.
Small-Amplitude Frequency Behavior of Fluid Lines With Turbulent Flow
F. T. Brown,
D. L. Margolis,
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.
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Brown, F. T., Margolis, D. L., and Shah, R. P. (December 1, 1969). "Small-Amplitude Frequency Behavior of Fluid Lines With Turbulent Flow." ASME. J. Basic Eng. December 1969; 91(4): 678–693. https://doi.org/10.1115/1.3571209
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