Introduction of a Modified Phenomenological Model for Single and Annular Plasma Synthetic Jet Actuators

In this study, a modified phenomenological model has been proposed by merging the Suzen-Huang model and the Yoon-Han thrust model for two types of single plasma actuators and plasma synthetic jet actuators, in different geometries and different working and environmental conditions. The model introduced in the present work is based on the thrust induced by plasma. With this generalization and modification, this model overcomes the drawbacks of the standard Suzen-Huang model (lack of correct estimation of the nonlinear relationship between the applied voltage and the amount of thrust induced by the plasma and not considering the influence of parameters such as the thickness of dielectric and dielectric constant, the thickness of the exposed electrode, and the alternating current frequency). Applying this model on a single plasma actuator shows the accuracy and correctness of this model. Also, by generalizing the present model for the annular plasma synthetic jet actuators, the dependence of the maximum charge density and body force on the diameter of the actuator was included in the model. Validation of the present model for the annular plasma synthetic jet actuator shows that the model is able to adapt itself well to changing the diameter of the actuator, working conditions, geometry and materials of the actuator and make a good estimate of the results.