Experimental Assessment of How Distance Between Two Plasma Actuator Affect a Quiescent Flow

In the past, Cold atmospheric pl\textbf{asma (CAP) has been used }in the aerospace industry, for active flow control\textbf{.} In this experiment,\textbf{ the effects of flow control are expanded on by measuring how the distance between} \textbf{two surface dielectric barrier discharge (SDBD) actuators affect a }quiescent\textbf{ flow. The two SDBD actuators will be placed on a flat surface at a far enough distance to be outside the influence of each other and slowly pushed in. The goal of this study is to find a distance where the flow from the first SDBD actuator flows smoothly into the second SDBD actuator to generate the optimal induced velocity. The velocity vectors will be obtained using a }particle image velocimetry\textbf{ (PIV) setup. The expected results are that} the \textbf{second SDBD actuator will interrupt the flow from the first actuator when it is too close by producing a counter ionic wind, and will have little to no effect on each other when they are far enough apart.}