10 March 2014 Development and test of synthetic jet actuators based on dual transducer concept
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Abstract
Synthetic Jet Actuators (SJA) are micro fluidic devices with low power and high compactness. They are used for different applications that require a directed air flow. These kind of fluidic generators require zero mass input and produces non-zero momentum output. The classic design of such an actuator consists of a membrane located on one wall of a small cavity and an orifice that is typically on the opposite side of the membrane. In the new SJA concept a Helmholtz resonator is equipped with two transducers to increase the performance of the actuator. The piezoelectric membranes generate the volumetric flow symmetrically from both sides of the chamber. A common outlet connects them to the acoustic far field. A network model [1] was used for designing and optimizing the SJA. Based on this, a doublewall actuator (DWSJA) was developed. The simulation results show that using two transducers does not fully redouble the exit velocity [2], but it still shows major improvement in comparison to conventional SJA with single transducers.
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Martin Schueller, Martin Schueller, Perez Wiegel, Perez Wiegel, Mathias Lipowski, Mathias Lipowski, Robert Schulze, Robert Schulze, Thomas Otto, Thomas Otto, Thomas Gessner, Thomas Gessner, } "Development and test of synthetic jet actuators based on dual transducer concept", Proc. SPIE 9059, Industrial and Commercial Applications of Smart Structures Technologies 2014, 905902 (10 March 2014); doi: 10.1117/12.2046204; https://doi.org/10.1117/12.2046204
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