The impact of plasma induced flow on the boundary layer in a narrow channel

0436871 - ÚT 2015 CZ eng C - Conference Paper (international conference)
Procházka, Pavel P. - Uruba, Václav
The impact of plasma induced flow on the boundary layer in a narrow channel.
EFM14 - EXPERIMENTAL FLUID MECHANICS 2014. Les Ulis Cedex: E D P SCIENCES, 2015 - (Dančová, P.; Vít, T.), s. 509-514. EPJ Web of Conferences. ISSN 2100-014X.
[Experimental Fluid Mechanics 2014. Český Krumlov (CZ), 18.11.2014-21.11.2014]
R&D Projects: GA ČR(CZ) GP14-25354P
Institutional support: RVO:61388998
Keywords : plasma actuator * flow control * channel
Subject RIV: BK - Fluid Dynamics

The induced flow generated by dielectric barrier discharge (DBD) actuator working in steady and unsteady regime will be used to modify properties of naturally developer boundary layer (BL) in short and length rectangular perspex channel which is connected to the blow-down wind tunnel. The actuator is placed in spanwise configuration and the inlet velocities will range between 5 and 20 m•s-1. Previously, mean flow field and statistical quantities were subjugated to investigation. In this paper, there will be presented dynamical features of the BL as well as tracking of coherent structures using phase-averaging. Proper Orthogonal Decomposition (POD) of influenced flow field and frequency analysis will be presented. These results should be taken into account regarding to use in the flow around a bluff body.
Permanent Link: http://hdl.handle.net/11104/0242663