Experimental investigation of a jet and vortex actuator using particle image velocimetry

Sertac Cadirci, Hasan Gunes, Ulrich Rist, Bernd Peters

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Özet

The Jet and Vortex Actuator (JaVA) is a zero-net-mass flux device for active flow control. JaVA was investigated experimentally using flow visualization and Particle Image Velocimetry (PIV) measurements and tested in still water instead of air to be able to make real-Time observations with naked eye at an actuator plate frequency of f = 1 Hz. It has been already published that typical JaVA induced flow regimes are angled and vertical jets, wall jets and vortex flows. The flow types depend on the governing parameters including actuator plate width, the amplitude and the frequency of the actuator and the mean position of the actuator plate due to the JaVA cavity. First, we carried out extensive flow visualizations in an effort to observe flow dynamics qualitatively and describe the effect of governing parameters on JaVA induced flows. Then, we carried out PIV experiments and obtained quantitative data. We present results using velocity and vorticity fields for different types of jet flows. The suction and blowing phases of the jet flows, and mean jet flow rate and the jet momentum flux are investigated in detail. The vertical jet is found to have the maximum mean flow rate as well as the maximum jet momentum flux.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012
Sayfalar1177-1188
Sayfa sayısı12
BaskıPARTS A, B, C, D
DOI'lar
Yayın durumuYayınlandı - 2012
EtkinlikASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012 - Houston, TX, United States
Süre: 9 Kas 201215 Kas 2012

Yayın serisi

AdıASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SayıPARTS A, B, C, D
Hacim7

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???event.eventtypes.event.conference???ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012
Ülke/BölgeUnited States
ŞehirHouston, TX
Periyot9/11/1215/11/12

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