Abstract
Complementary experimental and computational study on flow separation delay at a NACA 0015 airfoil affected by a DBD (Dielectric-Barrier-Discharge) plasma actuator is presented. The effect of the DBD plasma-actuator on the flow development towards its appropriate control is accounted through a relevant body force representing a source term in the equation of motion. The spatial distribution of the force is calculated from the time-averaged properties of the experimentally obtained (by particle image velocimetry - PIV) velocity field by applying the Reynolds-Averaged Navier-Stokes equations. The study focusses in particular on the specific plasma-related turbulence production in the equations governing the Reynolds-stress tensor. Prior to studying the airfoil configuration the computational determination of the body force and corresponding turbulence generation rate is analyzed in a wall jet flow induced by the DBD plasma actuator.
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