Abstract
An oscillatory, zero-net-mass flux actuator system, Jet and Vortex Actuator (JaVA), is implemented on the step wall of a backward facing step (BFS) in order to control the recirculation zone behind BFS. The actuator plate has a sinusoidal motion determined by the amplitude and the operating frequency. The proposed control method based on suction and blowing with an oscillating backward facing step seems to be effective in reducing the recirculation zone length and preventing flow separation downstream of BFS. Modal investigation of flow fields are performed by means of Proper Orthogonal Decomposition (POD). POD is applied to time-dependant snapshots of velocity fields at several operating frequencies. The POD modes revealed the behavior of the flow past a BFS under the effect of active flow control.
Original language | English |
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Title of host publication | Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015 |
Editors | Antonio Segalini |
Publisher | Springer Science and Business Media, LLC |
Pages | 249-257 |
Number of pages | 9 |
ISBN (Print) | 9783319306001 |
DOIs | |
Publication status | Published - 2016 |
Event | 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF2015 - Stockholm, Sweden Duration: 15 Jun 2015 → 18 Jun 2015 |
Publication series
Name | Springer Proceedings in Physics |
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Volume | 185 |
ISSN (Print) | 0930-8989 |
ISSN (Electronic) | 1867-4941 |
Conference
Conference | 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF2015 |
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Country/Territory | Sweden |
City | Stockholm |
Period | 15/06/15 → 18/06/15 |
Bibliographical note
Publisher Copyright:© Springer International Publishing Switzerland 2016.