Performance enhancement of a vertical tail using synthetic jet actuators

Authors
Rathay, Nicholas
ORCID
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Other Contributors
Amitay, Michael
Oberai, Assad
Sahni, Onkar
Whalen, Edward
Issue Date
2013-12
Keywords
Aeronautical engineering
Degree
PhD
Terms of Use
This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
Full Citation
Abstract
Detailed stereoscopic particle image velocimetry (Stereo PIV) experiments explored the formation and interaction of a single synthetic jet with the crossflow near the mid–span of the rudder (and at a moderate rudder deflection). These experiments showed that without control, the flow separated at the rudder hinge–line, and on the rudder there was a significant spanwise velocity component oriented outboard. When a single jet was activated, a train of vortex rings were ejected from the jet’s orifice. They maintained their coherence over the stabilizer, and then rotated, warped, and began to breakdown over the rudder. The outboard sides of the vortex rings were the most resilient to the crossflow. Furthermore, the jet reattached the flow along and outboard of its trajectory. Specifically, it appeared to create a virtual wall, inhibiting the strong spanwise crossflow over the rudder.
Description
December 2013
School of Engineering
Department
Dept. of Mechanical, Aerospace, and Nuclear Engineering
Publisher
Rensselaer Polytechnic Institute, Troy, NY
Relationships
Rensselaer Theses and Dissertations Online Collection
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