Vertical upward intermediate scale Taylor flow: Experiments and kinematic closure
作者： Alexander S. Rattner , Srinivas Garimella
DOI: 10.1016/J.IJMULTIPHASEFLOW.2015.04.007
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摘要: Abstract The vertical upward Taylor flow regime has been extensively studied at the capillary and large channel scale limits. However, behavior intermediate ( 5 ≲ Bo 40 , or 6 mm D 17 for ambient gas–water flows) is comparatively poorly characterized. This fundamentally different because classes of forces conventionally associated with either small Bond number flows are all relevant. In this investigation, air–water Taylor-flow experiments conducted in 6.0, 8.0, 9.5 mm diameter tubes. High-speed video data collected, automated image analysis algorithms developed to measure parameters including: bubble rise velocity, liquid film thickness, void fraction, slug lengths. New correlations models predict these scale. Results from study enable kinematic closure flows.
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