Incompressible flow model of synthetic jet actuators

A performance prediction model is developed for circular synthetic jet actuators in which the flow is assumed to be incompressible. Accurate prediction of the behavior of synthetic jets is challenging because of their complex unsteady nature. The importance of dimensionless stroke length and Reynolds number in determining the characteristics was confirmed. The performance parameters of synthetic jets, if expressed in their nondimensional form, are expected to be functions of these nondimensional parameters. It is assumed that the diaphragm is clamped round its edge and the peak-to-peak displacement at its center is fixed at a known value.