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
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.
Combustion of a turbulent jet with parabolic mean velocity profile with the flame lifted from the nozzle exit (outflow velocity is 15 m/s, Reynolds number is about 5100)
Visualization of Mechanical Processes
3624
Perturbations of the streaky structure at the initial stage of its breakdown
Visualization of Mechanical Processes
2798
Growth of the second natural mode of oscillations of a plate (M = 1.3)
Visualization of Mechanical Processes
2829