The effect of excitation frequency on the flow structure of a plane jet subject to acoustic excitation using particle image velocimetry

• Published in: Physics of fluids (1994) Vol. 37; no. 1
• Main Authors: Kumar, Sanjay, Murugan, Sudharson, Brohi, Ali Anwar, Ahmed, Zaheer
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 01.01.2025
• Subjects: Acoustic excitation; Cascade flow; Edge detection; Entrainment; Flow visualization; Fluid dynamics; Fluid flow; Jet aircraft; Jet flow; Kinetic energy; Mushrooms; Near fields; Particle image velocimetry; Pulsation; Reynolds number; Shear layers; Turbulence; Turbulent flow; Velocity distribution; Velocity measurement; Vortex breakdown; Vortex streets; Vortices

The flow field of plane jets has been studied experimentally under both no-excitation and excitation conditions. The jet pulsation intensity and jet Reynolds number were fixed at 1.0 and 500, respectively, while the excitation frequency increased gradually from 40, 60, and 100 Hz. Acoustic excitatio...