000014650 001__ 14650
000014650 005__ 20161115100158.0
000014650 04107 $$aeng
000014650 046__ $$k2016-08-21
000014650 100__ $$aBonnecaze, Roger
000014650 24500 $$aMulti-scale model of magnetically-driven flows in dead-end channels

000014650 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014650 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014650 506__ $$arestricted
000014650 520__ $$2eng$$aObservations show that dilute suspensions of iron particles in a rotating magnetic field form rotating rods along the wall of a blocked channel, creating a convective flow. We propose a multi-scale mechanism for this magnetically-driven flow. At the particle-scale, particles chain up to a length balancing magnetic and hydrodynamic forces on the resulting chains. The weak gradient of the magnetic field causes the chains to accumulate on one side of the channel. They rotate due to the rotating magnetic field, provided the field strength is high enough, which creates a localized body couple in the flow that drives a macroscopic convective flow in the channel. Coupled transport equations for the particles, chains and the suspension as a whole are presented and are successfully compared to experimental observations.

000014650 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014650 653__ $$a

000014650 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014650 720__ $$aBonnecaze, Roger
000014650 8560_ $$ffischerc@itam.cas.cz
000014650 8564_ $$s151868$$uhttps://invenio.itam.cas.cz/record/14650/files/TS.FM10-3.05.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1170, code TS.FM10-3.05
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000014650 962__ $$r13812
000014650 980__ $$aPAPER