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Dynamical structure of the turbulent boundary layer on rough surface
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SYSNO ASEP 0368982 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Dynamical structure of the turbulent boundary layer on rough surface Author(s) Uruba, Václav (UT-L) RID, ORCID
Jonáš, Pavel (UT-L) RID
Hladík, Ondřej (UT-L) RIDNumber of authors 3 Source Title Proceedings in Applied Mathematics and Mechanics - ISSN 1617-7061
Roč. 11, č. 1 (2011), s. 603-604Number of pages 2 s. Language eng - English Country DE - Germany Keywords turbulent boundary layer ; rough wall ; hairpin vortex Subject RIV BK - Fluid Dynamics R&D Projects GA101/08/1112 GA ČR - Czech Science Foundation (CSF) GAP101/10/1230 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) DOI 10.1002/pamm.201110291 Annotation The experiments on structure of turbulent boundary layer on the plane rough wall without pressure gradient are presented. Sand roughness of the wall is considered. Measurements are carried out using Time-Resolved PIV technique in planes 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 have been detected. Topology and typical size of those structures substantially differ in the cases in question. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2012 Electronic address http://onlinelibrary.wiley.com/doi/10.1002/pamm.201110291/abstract
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