Non-thermal plasma actuator mechanism in interaction with fluid flow structure for aeronautical flow control

Plasma actuators generated by surface dielectric barrier discharge are developed for controlling flow in aeronautics applications. This research studies the simulation of cold plasma at atmospheric pressure coupled with compressible fluid dynamics using COMSOL Multiphysics 5.4. Modeling air high voltages is carried out two dimensions. The development electric field and space charge density discussed several cases to determine regime. Non-thermal generates tangential ionic winds during corona discharge. results validated experimental literature. maximum wind velocity above actuator grows linearly applied voltage, simultaneously, horizontal extension voltage. induced electrohydrodynamic force augments voltage amplitude, reaching saturation higher voltages. Moreover, as rises, becomes filamentary, inducing a number streamer pulses. Hence, power consumption increases abruptly rises. In addition, efficiency amplitudes thickness. Our findings give clear description physical parameters mechanism plasma.