Indexed by:Journal Article

Date of Publication:2016-10-01

Journal:PLASMA SCIENCE & TECHNOLOGY

Included Journals:Scopus、EI、SCIE

Volume:18

Issue:10

Page Number:1005-1011

ISSN:1009-0630

Key Words:atmospheric pressure discharge plasma; surface dielectric barrier discharge (SDBD); flow control; encapsulated electrode width; Schlieren visualization

Abstract:The surface dielectric barrier discharge (SDBD) plasma actuator has shown great promise as an aerodynamic flow control device. In this paper, the encapsulated electrode width of a SDBD actuator is changed to study the airflow acceleration behavior. The effects of encapsulated electrode width on the actuator performance are experimentally investigated by measuring the dielectric layer surface potential, time-averaged ionic wind velocity and thrust force. Experimental results show that the airflow velocity and thrust force increase with the encapsulated electrode width. The results can be attributed to the distinct plasma distribution at different encapsulated electrode widths.