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The Jungebad apparatus is used to generate oil‐dispersion baths in medical applications. The oil‐water dispersion is produced by dispersing medically‐effective oil while filling the bathtub. The aim is to produce smaller droplets in comparison to conventionally produced oil‐dispersion baths to generate a high surface‐to‐volume ratio of the oil. Additionally, the oil should be dispersed homogenously...
Process design of multi‐phase unit operations on the micro‐scale relies on the detailed knowledge of the hydrodynamics and mass transfer of discrete disperse fluid particles. The present work examines gas bubbles in micro‐capillaries. For the case of bubbles rising in vertical capillary, the hydrodynamics and concentration fields are determined over a wide field of parameters (Re, Sc, dbubble/dcapillary...
An experimental setup for the examination of single bubbles, rising in a liquid, is presented. Its main part is a rotating chamber, in which the bubble is spatially stabilized by a balance of buoyancy, drag, and lift forces. This allows for long observation periods in time. Experimental results are presented for air bubbles in silicone oil. The experimental results are validated by a comparison with...
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