Original title: METHODS OF IDENTIFICATION OF COUPLED VORTEX STRUCTURES IN MOTION
Authors: Něnička, Václav ; Tesař, Václav ; Šonský, Jiří
Document type: Papers
Conference/Event: Colloquium FLUID DYNAMICS 2011, Praha (CZ), 2011-10-19 / 2011-10-21
Year: 2011
Language: eng
Abstract: Flow visualisation was performed of sections perpendicular to the axis through a jet. It reveaedl surprising complexity in the mixing region (outside the jet core. The images were processed by correlation in sub-images showing vortical motions suggesting the twisting and braiding movements of hair when a plait hairdo is made. For evaluation authors found useful the theory that measures entanglement in fluids by the corresponding algebra of braiding movements.
Keywords: braiding motion; submerged jets; turbulence
Project no.: CEZ:AV0Z20760514 (CEP)
Host item entry: Colloquium FLUID DYNAMICS 2011, ISBN 978-80-87012-36-9

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/11104/0200969

Permalink: http://www.nusl.cz/ntk/nusl-71543


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