000014408 001__ 14408 000014408 005__ 20161115100150.0 000014408 04107 $$aeng 000014408 046__ $$k2016-08-21 000014408 100__ $$aSalsac, Anne-Virginie 000014408 24500 $$aMotion of an oblate capsule in simple shear flow 000014408 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers 000014408 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016 000014408 506__ $$arestricted 000014408 520__ $$2eng$$aThe present study is focused on the dynamics of non-spherical liquid-core capsules in simple shear flow. The objective is to determine the stability of the equilibrium configurations of oblate capsules. To solve the fluid-structure interaction problem, we use a numerical model coupling a finite element method for the capsule deformation with a boundary integral method for the internal and external flows. The equilibrium motions are found to be independent of the capsule initial inclination and to depend only on the capillary number Ca and inner-toouter viscosity ratio λ. For λ =1, the tumbling and swinging regimes are found to be stable only until Ca ~ 0.9. Above, the capsule follows an out of plane motion which converges towards the rolling motion for Ca > 1.2. For λ > 4, only tumbling is stable at low Ca and rolling at higher Ca. 000014408 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000014408 653__ $$a 000014408 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016 000014408 720__ $$aSalsac, Anne-Virginie 000014408 8560_ $$ffischerc@itam.cas.cz 000014408 8564_ $$s172115$$uhttps://invenio.itam.cas.cz/record/14408/files/TS.FM01-2.03.pdf$$yOriginal version of the author's contribution as presented on CD, page 424, code TS.FM01-2.03 . 000014408 962__ $$r13812 000014408 980__ $$aPAPER