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Holdup in Vertical Three Phase Flow
Author(s) -
Woods G. S.,
Spedding P. L.,
Watterson J. K.,
Raghunathan R. S.
Publication year - 1999
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500070107
Subject(s) - annulus (botany) , phase inversion , flow (mathematics) , two phase flow , mechanics , momentum (technical analysis) , geology , materials science , chemistry , physics , composite material , biochemistry , finance , membrane , economics
Vertical three phase air‐water‐oil data in a. 0.026 m i.d. pipe were presented. The liquid holdup data presented as a complex pattern against f 0 the oil liquid volumetric ratio for annular flow at one value of total superficial liquid velocity. The form of the pattern was explained in qualititive terms depending on the nature of the flow pattern present. Generally for the water dominated regime below f 0 = 0.5 the overlying oil annular film protected the water annular from the momentum effects of the gas. Above f 0 = 0.5 the opposite took place and the water annulus film thinned until inversion to oil dominated flow occurred. This was a region of intense mixing of the liquid phases and the hold‐up rose dramatically.