Lift force acting on a pair of clean bubbles rising in-line
نویسندگان
چکیده
منابع مشابه
Growing bubbles rising in line
Over many years the author and others have given theories for bubbles rising in line in a liquid. Theory has usually suggested that the bubbles will tend towards a stable distance apart, but experiments have often showed them pairing off and sometimes coalescing. However, existing theory seems not to deal adequately with the case of bubbles growing as they rise, which they do if the liquid is b...
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This Letter reports experiments on the shape and path of air bubbles ~diameter range 0.1–0.2 cm! rising in clean water. We find that bubbles in this diameter range have two steady shapes, a sphere and an ellipsoid, depending on the size of the capillary tube from which they detach. The spherical bubbles move significantly slower than the ellipsoidal ones of equivalent volume. Bubbles with diame...
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Hydrodynamic lift forces offer a convenient way to manipulate particles in microfluidic applications, but there is little quantitative information on how non-inertial lift mechanisms act and compete with each other in the confined space of microfluidic channels. This paper reports measurements of lift forces on nearly spherical drops and bubbles, with diameters from one quarter to one half of t...
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ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2019
ISSN: 1070-6631,1089-7666
DOI: 10.1063/1.5100183