Název: Stereoscopic PIV measurement of boundary layer affected by DBD actuator
Autoři: Procházka, Pavel P. ; Uruba, Václav
Typ dokumentu: Příspěvky z konference
Konference/Akce: Experimental Fluid Mechanics 2015 /10./, Praha (CZ), 2015-11-17 / 2015-11-20
Rok: 2015
Jazyk: eng
Abstrakt: The effect of ionic wind generated by plasma actuator on developed boundary layer inside a narrow channel was investigated recently. Since the main investigated plane was parallel to the channel axis, the description of flow field was not evaluated credibly. This paper is dealing with cross-section planes downstream the actuator measured via 3D time-resolved PIV. The actuator position is in spanwise or in streamwise orientation so that ionic wind is blown in the same direction as the main flow or in opposite direction or perpendicularly. The interaction between boundary layer and ionic wind is evaluated for three different velocities of main flow and several parameters of plasma actuation (steady and unsteady regime, frequency etc.). Statistical properties of the flow are shown as well as dynamical behaviour of arising longitudinal vortices are discussed via phase-locked measurement and decomposition method.
Klíčová slova: boundary layer; PIV; plasma actuator; POD
Číslo projektu: GP14-25354P (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Experimental Fluid Mechanics 2015

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0254871

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-201387


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference