Response of turbulent fluctuations to the periodic perturbations in a flow over a backward facing step

The flow structures in a separated shear layer actuated by a synthetic jet actuator were studied using experimental methods. When forced at a frequency much lower than the natural shedding frequency (fH/U=0.042 or fXr/U=0.24), the vertical flapping motion of the shear layer downstream of the separat...

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Bibliographic Details
Main Authors: Zhuoyue Li, Honglei Bai, Nan Gao
Format: Article
Language:English
Published: Elsevier 2015-08-01
Series:Theoretical and Applied Mechanics Letters
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2095034915000781