000013931 001__ 13931
000013931 005__ 20161115094005.0
000013931 04107 $$aeng
000013931 046__ $$k2016-08-21
000013931 100__ $$aDagois-Bohy, Simon
000013931 24500 $$aStability of a Non-Newtonian Flow down an Incline

000013931 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000013931 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000013931 506__ $$arestricted
000013931 520__ $$2eng$$aWe investigate experimentally the stability of a shear-thinning flow down an inclined plane. We focus on low-concentrated polymer solutions following a Carreau rheology. By measuring the wave numbers and amplification coefficients at different frequencies, we reach the marginal conditions and determine the stability threshold in the (Re, k) plane. We find this threshold to be in good agreement with numerical results obtained by a resolution of the generalized Orr-Sommerfeld equations, as well as with results found in the literature. This confirms the destabilizing effect of the shear-thinning properties, observed through a lower critical Reynolds number and a higher wave celerity.

000013931 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013931 653__ $$a

000013931 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000013931 720__ $$aDagois-Bohy, Simon
000013931 8560_ $$ffischerc@itam.cas.cz
000013931 8564_ $$s159563$$uhttps://invenio.itam.cas.cz/record/13931/files/PO.FM08-1.03.38.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 1066, code PO.FM08-1.03.38).
000013931 962__ $$r13812
000013931 980__ $$aPAPER