Journal
EXPERIMENTAL THERMAL AND FLUID SCIENCE
Volume 119, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.expthermflusci.2020.110203
Keywords
Experimental characterization; Two-phase flow; Slug flow
Funding
- CAPES
- TE/CENPES/PETROBRAS
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The occurrence of the slug flow pattern is frequently detected in the petroleum industry. Theoretical and experimental works on the complex behaviour of this flow pattern are abundantly found, and their aim is to advance the state-of-the-technique on the behaviour of this kind of flow. The goal of the present work is to provide experimental data collected in five probing stations with resistive sensors mounted on a horizontal air-water slug flow in a 25.8-mm ID pipe. A signal processing technique provides the translational velocities, frequencies and void fractions that arise from different gas and liquid volumetric flow rates. Based on the obtained results, the effects of the liquid and gas superficial velocities were correlated with the probability density functions (PDFs) of the parameters variations observed in the slug flow development along the pipe. A quantitative criteria based on maximum likelihood estimates is used to determine the Weibull distribution for the translational velocity and the lognormal distribution type for the slug frequency distribution type.
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