Akademik Veri Yönetim Sistemi
AIAA Science and Technology Forum and Exposition (AIAA SciTech Forum), ELECTR NETWORK, 11 - 21 Ocak 2021, (Tam Metin Bildiri)
This study concentrates on the modelling of piezoelectrical-diaphragm driven synthetic jet actuator. Two different models, analytical and CFD-type Multiphysics, were studied and then compared against two sets of in-house experimental data for their jet velocity. The analytical model, accounts for the fluidic-acoustic part of the actuator, was an existing model in the literature and integrated with a new structural model to account for the piezoelectric diaphragm deflection instead of a moving wall. Overall, both models successfully predicted the shape of the velocity response, including the positions of the Helmholtz and mechanical resonance. The Multiphysics simulation has estimated the peak jet velocity with a difference of 0.3 ms(-1) and 0.8 ms(-1) for Case 1 and 2, respectively. The analytical model has a difference in the peak jet velocity of 1.0 ms(-1) and 1.2 ms(-1) at the mechanical resonance for Case 1 and 2, respectively.