Dielectric Barrier Plasma Dynamics for Active Control of Separated Flows
KETTERING UNIV FLINT MI
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The dynamics of separation mitigation with asymmetric dielectric barrier discharges is explored by considering the gas flow past a flat plate at an angle of attack. A self-consistent model utilizing motion of electrons, ions, and neutrals is employed to couple the electric force field to the momentum of the fluid. The charge separation and concomitant electric field yield a time-averaged body force which is oriented predominantly downstream, with a smaller transverse component towards the wall. This induces a wall-jet-like feature that effectively eliminates the separation bubble. The impact of several geometric and electrical operating parameters is elucidated.
- Electricity and Magnetism
- Fluid Mechanics
- Plasma Physics and Magnetohydrodynamics