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Effect of tube diameter on two-phase flow patterns in mini tubes
, Arcot R. Balakrishnan
Published in
2010
Volume: 88
   
Issue: 6
Pages: 936 - 944
Abstract
The effect of tube diameter on two-phase flow patterns was investigated in circular tubes with inner diameters of 0.6, 1.2, 1.7, 2.6, and 3.4 mm using air and water. The gas and liquid superficial velocity ranges were 0.01-50 and 0.01-3 m/s, respectively. The gas and liquid flow rates were measured and the two-phase flow pattern images were recorded using high-speed CMOS camera. The flow patterns observed were dispersed bubbly, bubbly, slug, slug-annular, wavy-annular, stratified, and annular flows. These flow patterns were not observed in all the test diameters, but were found to be unique to particular tube diameters, confirming the effect of tube diameter on the flow pattern. The data obtained were compared to existing experimental data and flow regime transition maps which show generally reasonable overall agreement at the larger diameters, but significant differences were observed with the smaller diameter tubes. © 2010 Canadian Society for Chemical Engineering.
About the journal
JournalCanadian Journal of Chemical Engineering
ISSN00084034
Open AccessNo
Concepts (22)
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    AIR-WATER SYSTEM
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    Annular flows
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    Circular tubes
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    CMOS CAMERA
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    Experimental data
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    FLOW MAPS
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    FLOW REGIME TRANSITION
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    GAS AND LIQUID FLOWS
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    High-speed
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    Inner diameters
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    LIQUID SUPERFICIAL VELOCITIES
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    Micro-tubes
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    MINI TUBES
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    Tube diameters
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    TWO-PHASE FLOW PATTERNS
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    Air
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    Liquids
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    Ternary systems
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    Tubes (components)
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    Two phase flow
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    WATERWORKS
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    Flow patterns