On the dynamics of the vortex structures generated by plasma DBD actuator

0421256 - ÚT 2014 RS eng A - Abstrakt
Procházka, Pavel P. - Uruba, Václav - Antoš, Pavel
On the dynamics of the vortex structures generated by plasma DBD actuator.
GAMM 2013 Books of abstract. Novi Sad: University of Novi Sad, 2013
Grant CEP: GA ČR GAP101/10/1230; GA ČR GAP101/12/1271
Institucionální podpora: RVO:61388998
Klíčová slova: plasma actuator * vortex dynamics * PIV
Kód oboru RIV: BK - Mechanika tekutin

The plasma actuator is used to generate pseudo-periodical vortices moving almost parallel to the wall under various settings of high-voltage high-frequency power AC. Low-frequency amplitude modulation is desired to generate vortices, otherwise wall-jet-like flow is present. It will be shown how the dynamics of generated coherent vortices alternates depending on generator setting, frequency spectrum will be introduced in dependency on frequency of amplitude modulation and duty cycle. Measurements will be performed using TR-PIV technique or HW anemometry across wall-jet flow. The generated flow patterns are to be applied for control of boundary layers.
Trvalý link: http://hdl.handle.net/11104/0229597