EXTRACTING INFORMATION ABOUT COHERENCE IN JET FLOWS

0324546 - ÚT 2010 RIV CZ eng C - Conference Paper (international conference)
Tesař, Václav - Něnička, Václav - Šonský, Jiří
EXTRACTING INFORMATION ABOUT COHERENCE IN JET FLOWS.
Engineering Mechanics 2009. Praha: ÚTAM, 2009 - (Náprstek,, J.; Fischer, C.), s. 272-273. ISBN 978-80-86246-35-2.
[Engineering mechanics 2009. Svratka (CZ), 11.05.2009-14.05.2009]
R&D Projects: GA AV ČR IAA200760705
Institutional research plan: CEZ:AV0Z20760514
Keywords : submerged jet * flow visualization * correlation coefficient
Subject RIV: BK - Fluid Dynamics

Several alternative approaches to processing jet flow visualization images were recently introduced by the authors. Common feature is processing a sequence of 2D images to detect presence and evaluate development dynamics of 3D vortical structures, which are recognised as regions that differ from the uncorrelated turbulent background in the processed pictures by their high negative values of correlation coefficient.
Permanent Link: http://hdl.handle.net/11104/0172211