000014407 001__ 14407
000014407 005__ 20161115100150.0
000014407 04107 $$aeng
000014407 046__ $$k2016-08-21
000014407 100__ $$aWang, Zhen
000014407 24500 $$aMotion of a spherical capsule in branched tube flow with finite inertia

000014407 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014407 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014407 506__ $$arestricted
000014407 520__ $$2eng$$aWe study computationally the transient motion of an initially spherical capsule flowing through a tube with a right-angled side branch, using an immersed-boundary lattice Boltzmann method. We focus on path selection of the capsule at the bifurcation as a function of a range of parameters, including the flow split ratio, the Reynolds number, the capillary number, and the capsule-to-tube size ratio. We find that the capsule trajectory is strongly influenced by the Reynolds and capillary numbers which play opposite role. Through its significant effect on the background flow, inertia increases the likelihood of the capsule to flow into the downstream main tube. On the contrary, the deformation of the capsule promotes its cross-stream migration towards the side branch. When the flow strength is increased, both the fluid inertia and capsule deformation increase: we summarize their effects in a phase diagram, which provides information on path selection depending on the parameters.

000014407 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014407 653__ $$a

000014407 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014407 720__ $$aWang, Zhen
000014407 8560_ $$ffischerc@itam.cas.cz
000014407 8564_ $$s70575$$uhttps://invenio.itam.cas.cz/record/14407/files/TS.FM01-2.02.pdf$$yOriginal version of the author's contribution as presented on CD,  page 422, code TS.FM01-2.02
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000014407 962__ $$r13812
000014407 980__ $$aPAPER