Browse > Article
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)
연도 인용수 순위
1 Ostermann, F., Woszidlo, R., Nayeri, C., and Paschereit, C. O., "The Interaction Between a Spatially Oscillating Jet Emitted by a Fluidic Oscillator and a Cross-flow," Journal of Fluid Mechanics, Vol. 863, 2019, pp. 215-241.   DOI
2 Woszidlo, R., Nawroth, H., Raghu, S., and Wygnanski, I. J., "Parametric Study of Sweeping Jet Actuators for Separation Control," 5th Flow Control Conference, 2010, AIAA 2010-4247.
3 Koklu, M., and Owens, L. R., "Comparison of Sweeping Jet Actuators with Different Flow-Control Techniques for Flow-Separation Control," AIAA Journal, Vol. 55, No. 3, 2017, pp. 848-860.   DOI
4 Guyot, D., Bobusch, B., Paschereit, C. O., and Raghu, S., "Active Combustion Control Using a Fluidic Oscillator for Asymmetric Fuel Flow Modulation," 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2008, AIAA 2008-4956.
5 Lundgreen, R. K., Hossain, M. A., Prenter, R., Bons, J. P., Gregory, J., and Ameri, A., "Impingement Heat Transfer Characteristic of a Sweeping Jet," 55th AIAA Aerospace Sciences Meeting, 2017, AIAA 2017-1535.
6 Lee, S. Y., Park, S. H., Kang, M. J., and Lee, Y., "Influences of the Internal Geometry of the Fluidic Oscillator on the Characteristics of Supersonic Sweeping Jet," Transactions of the Korean Society of Mechanical Engineers B, Vol. 43, No. 2, 2019, pp. 99-107.   DOI
7 Park, S. H., Kang, M. J., and Lee, Y., "Experimental Investigation of the Characteristics of a Supersonic Fluidic Oscillator with Feedback Channel," Transactions of the Korean Society of Mechanical Engineers B, Vol. 42, No. 8, 2018, pp. 541-549.   DOI
8 Ostermann, F., Woszidlo, R., Nayeri, C. N., and Paschereit, C. O., "The Time-Resolved Flow Field of a Jet Emitted by a Fluidic Oscillator into a Crossflow," 54th AIAA Aerospace Sciences Meeting, 2016, 2016-0345.
9 Shigeta, M., Miura, T., Izawa, S., and Fukunishi, Y., "Active Control of Cavity Noise by Fluidic Oscillators," Theoretical and Applied Mechanics Japan, Vol. 57, 2009, pp. 124-134.
10 Aram, S., and Shan, H., "Synchronization Effect of an Array of Sweeping Jets on a Separated Flow over a Wall-Mounted Hump," AIAA Aviation Forum, 2019, AIAA 2019-3396.
11 Gokoglu, S. A., Kuczmarski, M. A., Culley, D. E., and Raghu, S., "Numerical Studies of an Array of Fluidic Diverter Actuators for Flow Control," 41st AIAA Fluid Dynamics Conference and Exhibit, 2011, AIAA 2011-3100.
12 Koklu, M., "Fluidic oscillator array for synchronized oscillating jet generation," U.S. Patent No. 9,333,517 B2, 2016.
13 Seifert, A., Dayan, I., and Shtendel, T., "Synchronization of Fluidic Actuators," U.S. Patent No. 9,718,538 B2, 2017.
14 Seifert, A., Stalnov, O., Sperber, D., Arwatz, G., Palei, V., David, S., Dayan, I., and Fono, I., "Large Trucks Drag Reduction Using Active Flow Control," 46th AIAA Aerospace Sciences Meeting and Exhibit, 2008, AIAA 2008-0743.
15 Wang, S., "Experimental and Numerical Study of Micro-Fluidic Oscillators for Flow Separation Control," Ph.D. thesis, Universite de Toulouse, France, 2018.
16 Tomac, M. N., and Gregory, J. W., "Phase-Synchronized Fluidic Oscillator Pair," AIAA Journal, Vol. 57, No. 2, 2019, pp. 670-681.   DOI
17 Tomac, M. N., and Gregory, J. W., "Frequency-Synchronized Fluidic Oscillator Array," US Patent application Docket No. 16/157,460., 2018.
18 Kara, K., "Numerical Study of Internal Flow Structures in a Sweeping Jet Actuator," 34th AIAA Applied Aerodynamics Conference, 2016, AIAA 2016-3261.
19 Lin, J. C., Whalen, E. A., Eppink, J. L., Siochi, E. J., Alexander, M. G., and Andino, M. Y., "Innovative Flow Control Concepts for Drag Reduction," 54th AIAA Aerospace Sciences Meeting, 2016, AIAA 2016-0864.
20 Jones, G. S., Milholen, W. E., Fell, J. S., Webb, S. R., and Cagle, C. M., "Using Computational Fluid Dynamics and Experiments to Design Sweeping Jets for High Reynolds Number Cruise Configurations," 8th AIAA Flow Control Conference, 2016, AIAA 2016-3311.