Two biomimetic synthetic jet actuators were designed, manufactured, and tested under
conditions of a jet impingement onto a wall. Nozzles of the actuators were formed by a
flexible diaphragm rim, the working fluid was air, and the operating frequencies were
chosen near the resonance at 65 Hz and 69 Hz. Four experimental methods were used:
phase-locked visualization of the oscillating nozzle lips, jet momentum flux
measurement using a precision scale, hot-wire anemometry, and mass transfer
measurement using the naphthalene sublimation technique. The results demonstrated
possibilities of the proposed actuators to cause a desired heat/mass transfer distribution
on the exposed wall. It was concluded that the heat/mass transfer rate was
commensurable with a conventional continuous impinging jets at the same Reynolds
numbers.