Sinusoidal Excitation of a Free Turbulent Jet With Constant Amplitude Transverse Pressure Gradients Near the Nozzle Exit: Part II: An A-C Fluidic Model for the Jet Gain

[+] Author and Article Information
A. K. Stiffler

Department of Mechanical Engineering, Mississippi State University, State College, Miss.

J. L. Shearer

Systems and Controls Laboratory, The Pennsylvania State University, University Park, Pa.

J. Dyn. Sys., Meas., Control 95(2), 174-179 (Jun 01, 1973) (6 pages) doi:10.1115/1.3426675 History: Received March 16, 1973; Online July 13, 2010


A free turbulent jet is perturbed transverse to the flow direction by a sinusoidal pressure gradient near the nozzle exit. An a-c model for the jet gain, based upon the control region dynamics and a uniform deflection of the jet downstream of this region, is generally verified in conjunction with attenuated mean shear velocities. A method is given to experimentally determine the effective amplitude of the input signal at the interface of the jet.

Copyright © 1973 by ASME
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