Collision of a small bubble with a large falling particle

The motion of a tiny bubble (< 1mm) in a neighborhood of a solid sphere falling through a liquid is studied. A model assuming irrotational flow around the sphere and spherical bubble shape is provided; this model is validated by comparison with the experiment. The model can be further simplified...

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Bibliographic Details
Published in:EPJ Web of conferences 2014-01, Vol.67, p.2125-1-02125-5
Main Authors: Vejrazka, Jiri, Hubicka, Martin, Basarova, Pavlina
Format: Article
Language:English
Subjects:
Bubbles
Collision dynamics
Falling
Inertial
Irrotational flow
Liquids
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Summary:The motion of a tiny bubble (< 1mm) in a neighborhood of a solid sphere falling through a liquid is studied. A model assuming irrotational flow around the sphere and spherical bubble shape is provided; this model is validated by comparison with the experiment. The model can be further simplified by neglecting inertial forces, which are negligible in present experiments. Results of the model are provided also for the opposite limit, in which the inertial forces are dominating the bubble motion.
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/20146702125