Experimental investigation of turbulent flow in a channel with the backward-facing inclined step

0369062 - ÚT 2012 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Příhoda, Jaromír - Kotek, M. - Uruba, Václav - Kopecký, V. - Hladík, Ondřej
Experimental investigation of turbulent flow in a channel with the backward-facing inclined step.
Proceedings of the International Conference Experimental Fluid Mechanics 2011. Liberec: Technical University of Liberec, 2011 - (Vít, T.; Dančová, P.; Novotný, P.), s. 417-422. Vol. 2. ISBN 978-80-7372-784-0.
[Experimental Fluid Mechanics 2011. Jičín (CZ), 22.11.2011-25.11.2011]
Grant CEP: GA ČR GA103/09/0977
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: channel flow with inclined step * flow separation * PIV measuring technique
Kód oboru RIV: BK - Mechanika tekutin

The work deals with the experimental investigation of turbulent flow in a closed channel with the backward-facing inclined step. Experiments were carried by means of the PIV optical measuring method in the channel of the rectangular cross-section in the inlet part and with inclined steps of the constant height and various inclination angles for a wide range of the Reynolds number. The attention was paid especially to the separation region behind the step and to the relaxation of the shear layer after the reattachment in the outlet part of the channel. The dependence of the length of the separation region on the inclination step angle. Optical measurements were completed by the measurement of static pressure distribution in the inlet and outlet part of the channel to estimate energy losses.
Trvalý link: http://hdl.handle.net/11104/0203221