Non-unique holdup and pressure drop in two-phase stratified inclined pipe flow

1991 ◽  
Vol 17 (3) ◽  
pp. 377-394 ◽  
Author(s):  
M.J. Landman
Keyword(s):  
Pressure Drop ◽  
Pipe Flow ◽  
Two Phase ◽  
Inclined Pipe

Determination of the Pressure Drop Optimum Pipe Size for a Two-Phase Slug Flow in an Inclined Pipe

1970 ◽  
Vol 92 (4) ◽  
pp. 717-726 ◽  
Author(s):  
G. Singh ◽  
P. Griffith
Keyword(s):  
Pressure Drop ◽  
Pressure Gradient ◽  
Slug Flow ◽  
Total Pressure ◽  
Model Parameters ◽  
Shear Stresses ◽  
Water Mixture ◽  
Two Phase ◽  
Inclined Pipe ◽  
Pipe Size

A simple model of two-phase slug flow in inclined pipes is proposed. The model parameters are determined experimentally using five different size copper pipes at 5, 10, 15 deg inclinations on an air-water mixture at one atmosphere with up flow. The model predicts the total pressure gradient due to the sum of gravity and wall shear stresses. An investigation of the relationship between pressure gradient and pipe size results in an optimum pipe size at which the pressure gradient is minimum. A comparison between the simplified model predictions and experimental measurements shows a good agreement in the total pressure drop.

scholarly journals Friction pressure drop model of gas-liquid two-phase flow in an inclined pipe with high gas and liquid velocities

AIP Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 085025
Author(s):  
Zilong Liu ◽  
Ruiquan Liao ◽  
Wei Luo ◽  
Joseph X. F. Ribeiro ◽  
Yubin Su
Keyword(s):  
Pressure Drop ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Friction Pressure ◽  
Friction Pressure Drop ◽  
Inclined Pipe

Gas-Liquid Stratified-Wavy Flow in Horizontal Pipelines

1997 ◽  
Vol 119 (4) ◽  
pp. 209-216 ◽  
Author(s):  
X. T. Chen ◽  
X. D. Cal ◽  
J. P. Brill
Keyword(s):  
Pressure Drop ◽  
Liquid Film ◽  
Pipe Flow ◽  
Interfacial Friction ◽  
Interfacial Behavior ◽  
Liquid Holdup ◽  
Liquid Loading ◽  
Two Phase ◽  
Natural Gas Transmission ◽  
Circle Model

Gas-liquid stratified-wavy flow with low liquid loading is common in natural gas transmission pipelines and offshore gas pipelines. This specific case of two-phase pipe flow has been studied experimentally and theoretically in the present paper. The interfacial behavior during air-kerosene stratified-wavy flow in a 77.9-mm-dia 420-m-long pipeline was observed carefully. The gas-liquid interface usually exhibits a concave downward curved configuration. The liquid film-wetted wall fraction, liquid holdup, and pressure drop were also measured. A mechanistic “double-circle” model and a correlation for interfacial friction factor, required as a closure relationship in the model, have been developed. The new model gives significantly improved predictions for both liquid holdup and pressure drop during gas-liquid stratified-wavy flow in horizontal pipelines.

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