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Vertical Two 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.5500070103
Subject(s) - slug flow , mechanics , pressure drop , ripple , wake , flow (mathematics) , bubble , two phase flow , geology , materials science , thermodynamics , physics , power (physics)
Data are presented on flow regimes, holdup and pressure drop for vertical co‐current two phase flow in a 0.026 m i.d. pipe. A universal flow regime map was not possible but flow regime transitional equations were developed for the slug to churn, churn to semi‐annular, semi‐annular to annular and annular to annular ripple boundaries. Holdup was shown to be predicted by the Nicklin [15] relation for intermittent regimes and the Spedding‐Chen [16] relation for annular flows. Pressure drop in the slug regime was shown to be subjected to an uplifting effect due to liquid being held in the wake of the rising gas bubble. Pressure loss prediction was possible for bubble, slug and annular regimes only.