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Title: Drag-out of bubbles by a wall withdrawn from a liquid bath

Description: A bubble placed in the meniscus of a Landau-Levich flow will remain stationary there until a critical wall speed is reached, at which point the bubble is suddenly pulled out of the bath and deposited on the liquid-coated wall. This phenomenon is commonly observed in drinks such as milk or beer, and is of relevance to a number of manufacturing processes.

Credits: Justin C. T. Kao, Andrea L. Blakemore, and A. E. Hosoi

References: Justin C. T. Kao, Andrea L. Blakemore, and A. E. Hosoi. "Pulling bubbles from a bath", Physics of Fluids, 22:061705, 2010.

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Contributed By: Justin C. T. Kao

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