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Fluid flow in an impacting symmetrical tee junction II: two‐phase air/water flow
Author(s) -
Doherty A. P.,
Murphy A.,
Spedding P. L.
Publication year - 2009
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.162
Subject(s) - pressure drop , mechanics , inlet , dimensionless quantity , flow (mathematics) , two phase flow , flow coefficient , stratified flow , drop (telecommunication) , pipe flow , volumetric flow rate , geology , materials science , physics , electrical engineering , engineering , turbulence , geomorphology
A universal flow regime map was presented for two‐phase flow in a horizontal pipe. Data were given on two‐phase gas/liquid flow in a symmetrical impacting tee junction. The flow regimes in the inlet arm of the tee were those expected for a straight pipe. This was not so for the outlet arm where, in most cases, flow regimes occurred earlier than expected. At low liquid outlet flows the stratified regime was reinforced into higher gas flows than expected. The liquid hold‐up exhibited variations over the tee junction. The pressure drop in the inlet arm agreed with similar data for the straight pipe, but in the tee outlets was below that expected for the straight pipe. The tee junction pressure drop showed some parallels to the corresponding single‐phase flow data but the l e / d dimensionless values for the junction pressure drop showed a wide variation, in contrast to the single‐phase junction data. A model was presented based on the Lockhard–Martinelli theory that enabled the tee pressure drop to be predicted. Copyright © 2009 Curtin University of Technology and John Wiley & Sons, Ltd.