Evaluation of Synthetic Jet Flow Control Technique for Modulating Turbulent Jet Noise

The use of a synthetic jet as the flow control technique to modulate turbulent incompressible round was explored and assessed by numerical simulations. response characterised in terms statistics acoustic far-field. A quasi-Direct Numerical Simulation (qDNS) strategy used predict effects. Ffowcs-Williams Hawkings (FWH) analogy employed compute far-field response. An amplification effect instabilities induced observed for some parameters explored. It that allows controlling axial distribution production dissipation kinetic energy, but with respect aspects, appearance greater number noise sources observed, which far-field, resulted an increase from 1 20 dB equivalent different operating studied.