High-Fidelity Real Gas Model for RF Excited Plasma Flow Control

TL;DRAbstract

Abstract : We demonstrate the prediction capability a self consistent finite-element formulation for mitigating inert gas flow separation using rf-driven dielectric barrier discharge. Specifically, several physical and geometric parameters such as the amplitude and shape of excitation, dielectric constants, initial ionization level, and electrode shape are studied. The effect of polyphase power supply to an array of actuators has also been explored. It is found that (1) favorable ranges of frequency and electric field exist for most effective flow control, (2) the momentum transfer to the neighboring gas is cumulative for an optimum phase angle and distance between the exposed electrodes. Also streamwise momentum transfer does not keep on increasing with the number of actuators. We extend our work towards developing a multidimensional first principles theoretical model of the non-equilibrium real gas discharge. The electric force field generated by asymmetrically arranged plasma actuat

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