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.

Issue Section:
Research Papers
Topics:
Excitation, Nozzles, Pressure gradient, Turbulence, Deflection, Dynamics (Mechanics), Flow (Dynamics), Shear (Mechanics), Signals
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Copyright © 1973
 by ASME
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