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http://dx.doi.org/10.5139/JKSAS.2020.48.3.167

A Study of Oscillation Characteristics of Supersonic Fluidic Oscillator With Shared Feedback Channel  

Lee, SeungHeon (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Park, SangHoon (Dept of Aerospace and Mechanical Engineering, Graduate School, Korea Aerospace University)
Ko, HeeChang (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Seo, SongHyun (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Lee, Yeol (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.3, 2020 , pp. 167-174 More about this Journal
Abstract
A study of flow characteristics of supersonic fluidic oscillators with shared feedback channel inside was carried out. Unsteady CFD analysis were performed and the numerical results were validated by comparison with the experimental ones observed for the same operation conditions. It was found that the mass flow between individual oscillators through the shared feedback channel directly influenced on the oscillating flow mechanism inside the oscillator, and finally on the synchronization of the jet oscillations. It was also observed that the oscillator with shared feedback channel provided higher pressure loss as well as higher oscillation frequency as compared to the single oscillator of the same geometric shape.
Keywords
Fluidic Oscillator; Supersonic; Sweeping Jet; CFD; Synchronization; Flow Control;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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