Conditions for the sliding-bouncing transition for the interaction of a bubble with an inclined wall | Zendy

C. F. Gomez Barbosa | Zendy; Dominique Legendre | Zendy; Roberto Zenit | Zendy

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Conditions for the sliding-bouncing transition for the interaction of a bubble with an inclined wall

Author(s) -

C. F. Gomez Barbosa,

Dominique Legendre,

Roberto Zenit

Publication year - 2016

Publication title -

physical review fluids

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.244

H-Index - 37

eISSN - 2469-9918

pISSN - 2469-990X

DOI - 10.1103/physrevfluids.1.032201

Subject(s) - bubble , mechanics , transition (genetics) , physics , materials science , chemistry , biochemistry , gene

In this study we analyze the interaction of a single rising bubble with an inclined wall. We conduct experiments considering different liquids and bubble sizes, to cover a wide range of Reynolds and Weber numbers, with wall angles from nearly horizontal to nearly vertical. For all cases, the bubble initially collides with the wall; after the initial interaction, in accord with previous studies, the bubble either steadily slides on the wall or ascends, colliding repeatedly with it. Considering a force balance for the bubble motion on the wall, we propose a set of conditions for the transition from sliding to bouncing that is validated with the present and previous data.

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