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2D velocity-field analysis using triple decomposition of motion
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SYSNO ASEP 0105095 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title 2D velocity-field analysis using triple decomposition of motion Title Analýza 2D rychlostního pole užitím trojné dekompozice pohybu Author(s) Kolář, Václav (UH-J) SAI, ORCID, RID Source Title Proceedings of the Fifteenth Australasian Fluid Mechanics Conference. - Sydney : The University of Sydney, 2004 / Behnia M. ; Lin W. ; McBain G.D. - ISBN 1-864-87695-6 Pages nestr. Number of pages 4 s. Publication form CD ROM - CD ROM Action Australasian Fluid Mechanics Conference /15./ Event date 13.12.2004-17.12.2004 VEvent location Sydney Country AU - Australia Event type WRD Language eng - English Country AU - Australia Keywords decomposition of motion ; decomposition of vorticity ; decomposition of strain rate Subject RIV BK - Fluid Dynamics R&D Projects IAA2060302 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z2060917 - UH-J Annotation A straightforward application of the new triple decomposition of the local relative motion near a point to 2D velocity fields is presented. Unlike the Cauchy-Stokes double decomposition of motion into a pure straining motion and a rigid-body rotation the triple decomposition of motion aims, moreover, at the extraction of an effective pure shearing motion. It results in a more detailed flow description as the third term is responsible for a specific portion of vorticity labelled "shear vorticity" and for a specific portion of strain rate labelled "shear strain rate" Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2005
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