000014684 001__ 14684
000014684 005__ 20161115100159.0
000014684 04107 $$aeng
000014684 046__ $$k2016-08-21
000014684 100__ $$aFrigaard, Ian
000014684 24500 $$aCreeping flow around particles in large yield stress Bingham fluids

000014684 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014684 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014684 506__ $$arestricted
000014684 520__ $$2eng$$aYield stress fluids can hold buoyant rigid particles static if their yield stress is large enough. This critical yield number, beyond which there is no flow, is an important parameter to estimate in addressing sedimentation of rigid particles in visco-plastic fluids. As we get close to this limit, viscous dissipation becomes negligible in comparison to the plastic contribution. Employing slipline theory for 2D plastic flows, we are able to approximate the yield number (lower bound) and the shape of the plugs attached to the falling particle in this limit. Numerical experiments of symmetric particles motion in visco-plastic fluid validate the predictions of slipline theory for a wide range of geometries and reveal some astonishing effects.

000014684 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014684 653__ $$a

000014684 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014684 720__ $$aFrigaard, Ian
000014684 8560_ $$ffischerc@itam.cas.cz
000014684 8564_ $$s278370$$uhttps://invenio.itam.cas.cz/record/14684/files/TS.FM12-3.01.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1276, code TS.FM12-3.01
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000014684 962__ $$r13812
000014684 980__ $$aPAPER