000014544 001__ 14544
000014544 005__ 20161115100154.0
000014544 04107 $$aeng
000014544 046__ $$k2016-08-21
000014544 100__ $$aBasu, Saikat
000014544 24500 $$aOn Modeling Drop Impacts at Shallow Angles on Flowing Soap Films

000014544 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014544 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014544 506__ $$arestricted
000014544 520__ $$2eng$$aSmall drops impinging on soap films flowing at an angle exhibit three fundamental post-impact dynamics regimes: (a) the drop pierces through the film, (b) it coalesces with the flow, and (C) it bounces off the surface. During impact, the drop deforms along with bulk elastic deformation of the film. The system thus presents the rare opportunity to explore in-tandem effects of bulk elasticity and hydrodynamics. For shallow angles of film inclination, bounce-off regime predominates. We outline the analytical framework to characterize the impact dynamics. The model assumes a deformable drop and a deformable three-dimensional film, and invokes phase space based parametric analysis. Results can offer a significant step towards optimizing interactions between a spray and a flowing liquid. Findings for the bounce-off case also indicate a momentum transfer leading to vortex dipole shedding, along with capillary wave generation. Such an impulsive regime can be relevant for biolocomotion of water-walking animals.

000014544 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014544 653__ $$a

000014544 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014544 720__ $$aBasu, Saikat
000014544 8560_ $$ffischerc@itam.cas.cz
000014544 8564_ $$s219747$$uhttps://invenio.itam.cas.cz/record/14544/files/TS.FM06-4.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 816, code TS.FM06-4.04
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000014544 962__ $$r13812
000014544 980__ $$aPAPER