An Intermittent Flow Structure in Airlift Pump by Using an Annular Venturi Injector
Publish place: Journal of Applied Fluid Mechanics، Vol: 14، Issue: 3
Publish Year: 1400
Type: Journal paper
Language: English
View: 212
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Document National Code:
JR_JAFM-14-3_024
Index date: 5 January 2022
An Intermittent Flow Structure in Airlift Pump by Using an Annular Venturi Injector abstract
An annular venturi injector (AVI) was proposed to form an intermittent flow structure in airlift pump for a good pump performance. Experiments were conducted to investigate the performance of the airlift pump with this AVI by comparing with pump performance with traditional injectors, at a series of air flow rates . It was found that airlift pump with AVI had higher flow rates of output liquid and particle, than those with the traditional injectors. This AVI promoted the gas core to collapse and formed an intermittent flow structure in rising pipe. For this intermittent structure, its slug length, firstly increased to a maximal value with increasing gas flow rate and then remained stable even under a high gas flow rate, while its slug frequency decreased with gas flow rate and then remained to a minimal value under a high gas flow rate.
An Intermittent Flow Structure in Airlift Pump by Using an Annular Venturi Injector Keywords:
An Intermittent Flow Structure in Airlift Pump by Using an Annular Venturi Injector authors
Z. N. Wang
School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan, ۴۱۱۲۰۱, China
Y. S. Liao
Collage of Engineering and Design, Hunan Normal University, Changsha, ۴۱۰۰۸۱, China
W. C. Wang
Hubei Key Laboratory of Waterjet Theory and New Technology (Wuhan University), Wuhan, ۴۳۰۰۷۲, China