EPJ Web of Conferences
Volume 25, 2012EFM11 – Experimental Fluid Mechanics 2011
|Number of page(s)||6|
|Section||Experimental Fluid Mechanics 2011|
|Published online||16 April 2012|
Experimental investigation of turbulent flow in a channel with the backward-facing inclined step
Institute of Thermomechanics AS CR, v.v.i., Dolejškova 5, 182 00 Praha 8
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2 Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Studentská 2, 46117 Liberec
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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 H mm 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 Reynolds number was obtained for various step angles. Optical measurements were completed by the measurement of static pressure distribution in the inlet and outlet part of the channel to estimate energy losses.
© Owned by the authors, published by EDP Sciences, 2012
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