Two-phase flow pattern transitions of short airlift pumps

The flow behaviour and flow pattern transitions of two-phase flow of short airlift pumps were investigated in a wide range of submergence ratios and air discharges. This was obtained using conductivity signals from point-conductivity probes along with visual observations. It was found that the trans...

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Bibliographic Details
Published in:Journal of hydraulic research 2010-10, Vol.48 (5), p.680-685
Main Authors: Moisidis, Charalampos T., Kastrinakis, Eleftherios G.
Format: Article
Language:English
Subjects:
Airlift pump
Earth sciences
Earth, ocean, space
Exact sciences and technology
flow regime map
flow transition
Fluid dynamics
Fluid flow
Hydraulics
Hydrology. Hydrogeology
point conductivity probe
Pumps
Risers
Tubes
two-phase flow pattern
Visual observation
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Summary:The flow behaviour and flow pattern transitions of two-phase flow of short airlift pumps were investigated in a wide range of submergence ratios and air discharges. This was obtained using conductivity signals from point-conductivity probes along with visual observations. It was found that the transitions between the various flow patterns depend on the submergence ratio and that the two-phase flow structure can change characteristics along the riser tube. A flow regime map is presented which takes into account the operational parameters, namely superficial gas velocity and submergence ratio, of the airlift pump.
ISSN:0022-1686
1814-2079
DOI:10.1080/00221686.2010.515382