Effect of a dielectric barrier discharge on laminar-turbulent transition on a flat plate in a disturbed external flow

Abstract

Numerical simulation is applied to study the distinctive features of the dielectric barrier discharge (DBD) effect on laminar-turbulent transition on a flat plate in the presence of disturbances in the external flow. The density distributions of the electric force and the discharge power acting on the gas are assumed to be uniform within the given discharge volume. To model the external disturbances the value of the turbulent viscosity in the differential model used is assumed to be nonzero at the boundary layer edge.