自在な流れ形成に向けた印刷技術によるDBDプラズマアクチュエータの開発

抄録

Plasma actuator can form a three-dimensional flow by devising the shape and arrangement of the electrodes. The plasma actuators with a complicated electrode shape can be manufactured with the photolithography technology. However, this method has some issues to be solved such as high cost, a large number of steps, and a limitation on the size of the device to be manufactured. In this study we focused on printing technology toward an adaptable flow design. Since the electrodes can be wired on the substrate by using the printing method, the flow structure induced by the plasma actuator can be freely designed. We fabricated some plasma actuators by an inkjet printing technology. The stable surface DBD was observed in the printed plasma actutor as observed in the conventional plasma actuator made of copper tape. The thrust was larger with the printed plasma actuator than that of the plasma actuator made of the copper tape. In addition, a uniaxial multi-electrode plasma actuator was fabricated to form a three-dimensional vertical jet. The fabrication of the plasma actuators by the inkjet printing technology may be able to create various flows.