Interactions between acoustics and jets:

Acoustic resonance is the phenomenon observed when an acoustic system amplifies sound waves that match or nearly match the system’s natural vibration frequencies. Numerous past studies have shown that jets exposed to the acoustic resonance of certain amplitudes will exhibit unexpected behaviors like jet flapping, flattening, and flow separation. The associated acoustic resonance has also been seen to cause a change in the jet mixing properties, create unpredictable jet breakdown, cause turbulent behavior, or force unexpected eddy creation. My current research focuses specifically on the observable jet behavior when a rectangular jet with an aspect ratio of 3:1 is allowed to issue into to a transverse oscillatory flow field.