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The plane jet, visualized by the smoke, with the parabolic mean velocity profile at the nozzle exit: without acoustical action

Project: Visualization of Mechanical Processes

Journal: Visualization of Mechanical Processes: An International Online Journal

Article: INFLUENCE OF INITIAL CONDITIONS AT THE NOZZLE EXIT AND ACOUSTICAL ACTION ON THE STRUCTURE AND STABILITY OF A PLANE JET

Topics: Turbulence, Turbulence models, Flow-structure interaction, Nozzles, Aerodynamics, Visualization techniques

In this movie, the plane jet is developed under conditions of the parabolic mean velocity profile formed directly at the nozzle exit. Therefore, the sinusoidal oscillation of the jet caused by its absolute instability can be observed. Under the acoustical effect on the jet with the same intensity of sound for frequencies from 30 to 90 Hz, some features of this acoustical effect can be observed.

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