000014678 001__ 14678
000014678 005__ 20161115100158.0
000014678 04107 $$aeng
000014678 046__ $$k2016-08-21
000014678 100__ $$aPinho, Fernando
000014678 24500 $$aPurely-elastic instabilities in cross-channel flows with periodic forcing (INVITED)

000014678 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014678 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014678 506__ $$arestricted
000014678 520__ $$2eng$$aWe present results of a numerical investigation of the low Reynolds number flow of viscoelastic fluids, described by the Oldroyd-B model, in a 2D cross-slot channel with a main inlet flow and two periodic in-phase and out-of-phase forcings imposed on the opposing lateral inlets. Several types of flow transition are reported that depend on the amplitude and frequency of the forcing. We observed that for high Weissenberg numbers the flow becomes chaotic, with the path to the chaotic state depending on both the ratio of steady inlet velocity to oscillating velocity amplitude and Deborah number.

000014678 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014678 653__ $$a

000014678 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014678 720__ $$aPinho, Fernando
000014678 8560_ $$ffischerc@itam.cas.cz
000014678 8564_ $$s186210$$uhttps://invenio.itam.cas.cz/record/14678/files/TS.FM12-2.01.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1264, code TS.FM12-2.01
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000014678 962__ $$r13812
000014678 980__ $$aPAPER