000014005 001__ 14005 000014005 005__ 20161115094008.0 000014005 04107 $$aeng 000014005 046__ $$k2016-08-21 000014005 100__ $$aElsas, José, Hugo 000014005 24500 $$aVortex Statistics from Vorticity Local Properties 000014005 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers 000014005 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016 000014005 506__ $$arestricted 000014005 520__ $$2eng$$aSystematic procedures for the identification of vortices/coherent structures have been proposed as a way to address their kinematical and dynamical roles in structural formulations of turbulence. We investigate how the known vortex identification criteria performs in controled numerical experiments, and pinpoint a number of relevant difficulties. These issues are addressed – and essentially solved – from the introduction of an alternative vortex identification criterion which is entirely based on local properties of the vorticity field. 000014005 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000014005 653__ $$a 000014005 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016 000014005 720__ $$aElsas, José, Hugo 000014005 8560_ $$ffischerc@itam.cas.cz 000014005 8564_ $$s150370$$uhttps://invenio.itam.cas.cz/record/14005/files/PO.FM15-1.04.78.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 1552, code PO.FM15-1.04.78). 000014005 962__ $$r13812 000014005 980__ $$aPAPER