Interaction of exposed electrodes of a symmetric plasma actuator in a subsonic flow for controlling the lift force of the wing
Bocharnikov V. M.1, Volodin V. V.1, Elyanov A. E.1
1Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
Email: vova.m.bocha@gmail.com
A mechanism for interaction between the exposed electrodes of a symmetric actuator and subsonic flow is proposed, which qualitatively explains the experimental data without using terms "wall jet" and "synthetic jet". The flow is thus controlled by the Coulomb force acting on the charged external flow. The flow of ions from the upstream electrode increases the velocity circulation in the space between the electrodes and at the outer boundary of the separation bubble that occurs at the downstream electrode. Application of the lift force assessment via the proposed mechanism to the experimental data shows that the optimal combination of the supply voltage period and flight time allows increasing the lift force modulus with holding constant the supply power. Keywords: dielectric barrier discharge, symmetric actuator, synthetic jet, separation bubble.
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