An experimental investigation of a Jet and Vortex actuator for active flow control

Hasan Gunes*, Sertac Cadirci, Ulrich Rist

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Citations (Scopus)

Abstract

An oscillatory, zero-net-mass flux Jet and Vortex actuator (JaVA) was built and tested in a still water tank. The striking feature of this JaVA model is that it can produce different flow types ranging from vertical through oblique to wall-parallel jets or vortices mainly depending on the chosen actuation frequency and amplitude. These flow types have been investigated using flow visualizations and by extracting quantitative velocity data using a gradient-based optical flow concept. The temporal behavior of basic JaVA-induced flow types have been further investigated using Fourier analysis. All quantitative features mentioned in Ref. 3 have been reproduced but our results are much more detailed and consist of instantaneous velocity fields for quantitative analysis. In addition, we have found that the actuator plate's mean position is another important parameter which significantly affects the JaVA-induced flow types.

Original languageEnglish
Title of host publication4th AIAA Flow Control Conference
Publication statusPublished - 2008
Event4th AIAA Flow Control Conference - Seattle, WA, United States
Duration: 23 Jun 200826 Jun 2008

Publication series

Name4th AIAA Flow Control Conference

Conference

Conference4th AIAA Flow Control Conference
Country/TerritoryUnited States
CitySeattle, WA
Period23/06/0826/06/08

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