Print Email Facebook Twitter Flows around Confined Bubbles and Their Importance in Triggering Pinch-Off Title Flows around Confined Bubbles and Their Importance in Triggering Pinch-Off Author Van Steijn, V. Kleijn, C.R. Kreutzer, M.T. Faculty Applied Sciences Department DelftChemTech Date 2009-11-19 Abstract We describe the breakup of a confined gas thread in a cross-flowing stream of liquid at capillary numbers Ca<10-2. The breakup is initiated, not by a Plateau-Rayleigh instability, but by liquid that flows from the tip of the thread to the neck where pinch-off occurs. This flow, faster than previously estimated, is driven by different curvatures at the tip and neck and runs through large gaps between thread and channel walls. Understanding how these curvatures evolve during bubble formation leads to accurate predictions of the moment of pinch-off. To reference this document use: http://resolver.tudelft.nl/uuid:434824de-4106-4fed-9770-6ea87a647699 DOI https://doi.org/10.1103/PhysRevLett.103.214501 Publisher American Physical Society ISSN 1079-7114 Source Physical Review Letters, 103 (21), 2009 Part of collection Institutional Repository Document type journal article Rights (c) 2009 The Authors ; American Physical Society Files PDF vanSteijn_2009.pdf 562.58 KB Close viewer /islandora/object/uuid:434824de-4106-4fed-9770-6ea87a647699/datastream/OBJ/view