The parametric investigation of influence of DBD actuator on the boundary layer under various Reynolds number

0437654 - ÚT 2015 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Procházka, Pavel P. - Uruba, Václav
The parametric investigation of influence of DBD actuator on the boundary layer under various Reynolds number.
Journal of Physics: Conference Series. Vol. 1. Bristol: Institute of Physics Publishing, 2014, s. 012008-012008. 530. ISSN 1742-6588.
[Fluid Mechanics Conference : FMC 2014 /21./. Krakov (PL), 15.06.2014-18.06.2014]
Grant CEP: GA ČR(CZ) GP14-25354P; GA MŠMT 7AMB13PL003
Institucionální podpora: RVO:61388998
Klíčová slova: boundary layer * DBD * control
Kód oboru RIV: BK - Mechanika tekutin

In the previous research, the wall-jet-like flow or vortical structures were generated using a single dielectric barrier discharge (DBD) actuator in still air. It has been shown that the actuator can generated so-called vortex train if it is powered by modulated voltage waveform. Now, the plasma DBD actuator is placed inside a rectangular channel and an interaction with boundary layer (BL) is studied. The characteristics of the BL are modifying by varying inlet velocity. The actuator is adjusted to be set in spanwise orientation which means that the generated wall-jet-like flow is oriented in the same meaning as the main flow or in the opposite direction. The interaction of vortical structures generated by actuator with BL will be described quantitatively from mean flow field.
Trvalý link: http://hdl.handle.net/11104/0241201