Experimental study of a DBD-plasma driven channel flow

Abstract

A DBD-plasma driven channel flow is proposed and studied experimentally. The configuration consists of two DBD plasma actuators mirroring each other on opposite wall of a channel. The rationale is that a stronger flow could be obtained by merging the wall jets created by the mirroring DBD plasma actuator. Measurements of the velocity of the channel flow so obtained for different values of the separation of the walls have been performed with a miniature pitot probe mounted on a micro-step 3D traverse system. The data are compared with the corresponding ones for wall jets induced by a single DBD plasma actuator. The preliminary results obtained suggest that DBD-plasma driven channel flows could be used to create a non-continuous small suction device or a small jet as demanded by flow control applications. Copyright © 2011 by Temasek Laboratories - National University of Singapore.