Experimental investigation into the flow structure of plasma induced Jet in a 2-D Cross-Flow

Abstract

This study is focused on the flow physics in the condition of employing the active flow control methods and DBD plasma actuators as a transverse jet. In the current research, a single DBD plasma actuator is added to the Trailing Edge of a flat plate model and several wind tunnel experiments are conducted to study the flow structures. The salient goal of this work is to investigate the flow physics of Plasma Jet in Cross-Flow. Wind tunnel experiments results in two different free stream velocities of U∞=10m/sandU∞=20m/s and several model’s angles of attack show that the flow domain consists of two different counter rotating vortices at St=0.1886 and 0.1725 and a secondary vortex with St=0.5842. The manner of these vortices in the different AoA and free stream velocities, and also the shape of the velocity profile in the near wake and far-field wake of the plasma jet prove that the flow domain around the Plasma Jet in Cross-Flow is very similar to the flow around an airfoil equipped with Gurney Flap.