Performance Characterization of a Piezoelectric Micro SJA
This paper aims to explore the synthetic jet behavior for a dual-diaphragm piezoelectrically driven micro synthetic jet actuator. For a sinusoidal actuation cycle at an operating frequency of 648 Hz, the synthetic jet flow pattern was simulated and compared with the visualized image and measured centerline velocity distribution to validate the computer code. The far-field flow structure was similar to a common continuous turbulent air jet; whereas, the unsteady formation of a vortex pair was predicted in the near-field. Numerical experiments were extended to appraise performance of micro synthetic jet actuators by varying the driving voltage, width of the slot and depth of the actuator cavity.
Selin Teo, A. Q. Liu, H. Li and B. Tarik
A. S. Yang et al., "Performance Characterization of a Piezoelectric Micro SJA", Advanced Materials Research, Vol. 74, pp. 223-226, 2009