Original title: Hairpin Vortices in Turbulent Boundary Layer
Authors: Uruba, Václav ; Hladík, Ondřej
Document type: Papers
Conference/Event: Setkání kateder mechaniky tekutin a termomechaniky /30./, Liberec (CZ), 2011-06-22 / 2011-06-24
Year: 2011
Language: eng
Abstract: The experiments on dynamics of turbulent boundary layer on the plane rough wall without pressure gradient are to be presented. Sand roughness of the wall is considered. Measurements are carried out using Time-Resolved PIV technique in plains parallel and perpendicular to the wall. The results on rough wall are compared with the base case of boundary layer on smooth wall. Hairpin vortices and theirs packets have been detected. Topology and typical size of those structures substantially differ in the cases in question.
Keywords: hairpin vortex; rough surface; turbulence
Project no.: CEZ:AV0Z20760514 (CEP), GA101/08/1112 (CEP), GAP101/10/1230 (CEP)
Funding provider: GA ČR, GA ČR
Host item entry: 30. Setkání kateder mechaniky tekutin a termomechaniky, ISBN 978-80-7372-747-5

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0198177

Permalink: http://www.nusl.cz/ntk/nusl-55881


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers