@inproceedings{72345a69cc3c41f4ac53e43c2ea71d2a,
title = "Comparison of various fluidic oscillators for separation control on a wall-mounted hump",
abstract = "Various fluidic oscillators were tested on a model of the NASA hump geometry in support of the development of active flow control technology. Time-averaged pressure measurements were conducted with high spatial resolution along both the chord and span of the model. Well-established flow control coefficients (based on momentum and energy) are used as criteria to compare the performance and efficiency of different fluidic oscillator designs. Additionally, Stereoscopic Particle Image Velocimetry and surface flow visualization were employed to provide insight on the flow physics. Results indicate large deviations in efficiency for different actuator geometries. This is in part due to different opening angles of the jets and the associated spanwise coverage. The strength and coherence of counter-rotating vortex pairs along the span significantly influences the performance but is not a universal indicator of control authority.",
author = "Christopher Otto and Philipp Tewes and Little, {Jesse C.} and Rene Woszidlo",
note = "Funding Information: This work has been supported by The Boeing Company. The authors would like to acknowledge Miranda Ouellette, Benjamin Champion, and David Borgmann for their continuous effort throughout the project. Special thanks go to the Department of Aerospace and Mechanical Engineering Machine Shop (Dale Drew, Lane Hammond, and Joseph Hartley) for their ongoing support and immediate help whenever needed. Publisher Copyright: {\textcopyright} 2019 by German Aerospace Center (DLR). Published by the American Institute of Aeronautics and Astronautics, Inc.; AIAA Scitech Forum, 2019 ; Conference date: 07-01-2019 Through 11-01-2019",
year = "2019",
doi = "10.2514/6.2019-0884",
language = "English (US)",
isbn = "9781624105784",
series = "AIAA Scitech 2019 Forum",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "AIAA Scitech 2019 Forum",
}