Based on these variations, the distance at which a continuous jet developed was investigated, and the jet’s flow characteristics were analyzed via spectral analysis.

Even though the piezoelectric requires high. 7550901 - 11862194 - USPTO Application Publication Gregory M. Recently, piezoelectric fan has gained attention as potential active cooling method for electronics devices. Variations in the characteristic velocities were analyzed as a function of the distance from the orifice in the streamwise direction and of the deflection of the piezoelectric disk. The Piezo Fan combines all the characteristics of a QuickPack (low profile, low power etc) with the cooling capabilities of a fan. Piezoelectric Fan, Cooling Device Containing Same, and Method of Cooling a Microelectronic Device Using Same. The flow characteristics of the DCJ were dominated by advection of these vortex pairs. The periodic motion of the DCJ that was generated by the piezoelectric disks was observed, and counter-rotating vortex pairs were observed at the orifice. The reference model was determined using a grid- and time-step-dependency test, and the flow characteristics of the DCJ were analyzed using this validated numerical model. For example, it’s used in smart phones to transform the energy of a person’s voice into electrical signals that are received by another phone and transformed into recognizable sounds.

The results of various turbulence models were compared with the results of previous experimental reports to develop the reference numerical model. Piezoelectric pump design is regarded as a hot research topic in the microfluidic field, and has been applied in liquid cooling, precision machinery and other relevant domains. Piezoelectricity can be used for a range of piezoelectric applications such as inkjet printing and the detection and production of sound. The flow characteristics of a dual piezoelectric cooling jet (DCJ) were investigated by numerical analysis.

Piezo electric cooling