Parametric study of synthetic jet actuators on a backward facing step
Posted on:2014-04-27
Degree:M.S
Type:Thesis
University:University of Maryland, College Park
Candidate:Sassoon, Aaron M
Full Text:PDF
GTID:2452390008456647
Subject:Engineering
Abstract/Summary:
The ability of synthetic jet actuators to leverage natural instabilities in the flow field due to separation is reviewed for applications towards virtual shape change. The separating flow over a backward facing step of height h is studied under the influence of an actuator upstream and downstream of separation. Experimental tests were conducted in a wind tunnel using particle imaging velocimetry and time-averaged static pressure data to measure and analyze the affected flow fields and pressure distribution. By placing a second actuator downstream of separation, the ability to influence the pressure distribution has been shown. The two actuators demonstrated the ability to affect Cp and dCp/dx in the region from 0 - 6h after the step.