000014392 001__ 14392
000014392 005__ 20161115100150.0
000014392 04107 $$aeng
000014392 046__ $$k2016-08-21
000014392 100__ $$aHaller, George
000014392 24500 $$aCan solid mechanics help in understanding fluid vortices?

000014392 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014392 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014392 506__ $$arestricted
000014392 520__ $$2eng$$aCoherent vortices are the most important building blocks of complex flows, yet no universally accepted vortex definition has emerged in fluid dynamics yet. A reason is that most vortex definitions depend crucially on the frame of the observer who evaluates them, even though the significance of vortices arises from the frame-invariant material transport they induce. Recently, ideas from nonlinear dynamics and continuum mechanics have lead to new, objective notions of coherence in fluid dynamics. These reveal surprisingly coherent, previously undetected material vortices in turbulent flows. We survey these ideas and illustrate their efficacy on geophysical flow data.

000014392 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014392 653__ $$a

000014392 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014392 720__ $$aHaller, George
000014392 8560_ $$ffischerc@itam.cas.cz
000014392 8564_ $$s159983$$uhttps://invenio.itam.cas.cz/record/14392/files/SL.FS-3.pdf$$yOriginal version of the author's contribution as presented on CD,  page 39, code SL.FS-3
.
000014392 962__ $$r13812
000014392 980__ $$aPAPER