Journal of Materials and Engineering Structures
Volume 8, Numéro 3, Pages 357-371
2021-09-30
Numerical Study Of The Effects Of Crown Discharge On The Separation Bulbs Of The Leading Edge With Low Reynolds Numbers
Authors : Guebli Wassila . Semmar Djaffar . Mehalaine Koceila .
Abstract
Surface atmospheric plasmas can act on the boundary layer of a flow along a profile. Different types of plasma actuators are currently being studied in specialized laboratories. The objectives in the aerodynamic domain can be to control the laminar-turbulent transition, the decrease in drag, the increase in lift, the reduction of noise and consumption. The object of this work is to use plasma actuators by characterizing their physical properties and their effects on flows. Two configurations were used: surface discharges with strip electrodes and wire electrodes. The ionic wind induced by these actuators is of low speed (a few m/s). This mechanical property was used to modify the boundary layer developing on a flat plate. The leading edge detachments from the profile flow have been delayed or even eliminated. The digital modeling and resolution of flow subjected to surface corona discharges, consists of a study based on the numerical simulation of the stationary behavior of a corona discharge in air at atmospheric pressure, carried out using the FLUENT software
Keywords
Electro hydrodynamics ; Corona Discharge ; Plasma ; Flow Control
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