Effect of Drag Reducing Polymers on Two-Phase Gas–Liquid Flows in a Horizontal Pipe

2004 ◽  
Vol 82 (12) ◽  
pp. 1583-1588 ◽  
Author(s):  
A. Al-sarkhi ◽  
A. Soleimani
Keyword(s):  
Two Phase ◽  
Horizontal Pipe ◽  
Liquid Flows

scholarly journals Evaluation of velocity fields in horizontal gas-liquid intermittent flows using Stereoscopic-PIV and instantaneous masking procedure

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Leonardo Soares Fernandes ◽  
Rodrigo dos Santos Navarro De Mesquita ◽  
Fabio Jessen Werneck de Almeida Martins ◽  
Luis Fernando Alzuguir Azevedo
Keyword(s):  
Liquid Velocity ◽  
Numerical Models ◽  
Velocity Fields ◽  
Gas Bubble ◽  
Complex Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Stereoscopic Piv ◽  
Liquid Flows

The main goal of this work was to obtain well-converged liquid velocity profiles for intermittent gas-liquid flows in a horizontal pipe. To this end, air and water with superficial velocities of JG = 0.5 m/s and JL = 0.3, 0.4 and 0.5 m/s, respectively, were driven into a 18-m acrylic test section with an inner diameter of 40 mm. All three-components of the velocity vectors were measured in a pipe cross-section using a highfrequency stereoscopic PIV system, together with the laser induced fluorescence technique. Photogates were used to measure the unit cell translational velocity, as well as to trigger data acquisition, allowing the calculation of ensemble-averaged velocity fields at specific positions, referenced to the gas-bubble nose tip position. An instantaneous image masking procedure was implemented, allowing the determination of non-dimensional ensemble-averaged velocity profile in the liquid film, referenced to gas-bubble boundary. The high-frequency system employed allowed the determination of the influence of the faster-moving gas bubble on the liquid velocity field in the plug region. The data presented are relevant to the validation and improvement of one-dimensional two-phase numerical models, as well as to better understand this complex flow.

Pressure Drop for Oil-Gas Two-Phase Flow Through Straight Horizontal Pipe

2007 ◽  
Author(s):  
Wenhong Liu ◽  
Liejin Guo ◽  
Ximin Zhang ◽  
Kai Lin ◽  
Long Yang ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Flow Through ◽  
Oil Gas

scholarly journals Model of a turbulent flow of a two-phase liquid with an uneven distributed phase concentration in a horizontal pipe

2021 ◽  
Vol 1047 (1) ◽  
pp. 012021
Author(s):  
Kh Sh Ilhamov ◽  
D Z Narzullaev ◽  
Sh T Ilyasov ◽  
B A Abdurakhmanov ◽  
K K Shadmanov
Keyword(s):  
Turbulent Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Phase Concentration ◽  
Phase Liquid

Experimental Characterization of Slug Flow Velocity Distribution in Two Phase Pipe Flow

2009 ◽  
Author(s):  
Afshin Goharzadeh ◽  
Peter Rodgers
Keyword(s):  
Velocity Distribution ◽  
Slug Flow ◽  
Two Phase ◽  
Significant Drop ◽  
Horizontal Pipe ◽  
Measured Velocity ◽  
Air Bubble ◽  
Velocity Magnitude ◽  
Index Matching ◽  
Refractive Index Matching

This paper presents an experimental study of gas-liquid slug flow inside a horizontal pipe. The influence of air bubble passage on liquid flow is characterized using Particle Image Velocimetry (PIV) combined with Refractive Index Matching (RIM) and fluorescent tracers. A physical insight into the velocity distribution within slug flow is presented. It was observed that the slug flow significantly influences the velocity profile in the liquid film. Measured velocity distributions also revealed a significant drop in the velocity magnitude immediately upstream of the slug nose. These findings aim to aid an understanding of the mechanism of solid transportation in slug flows.

Influence of Gas-Liquid Two-Phase Intermittent Flow on Hydraulic Sand Dune Migration in Horizontal Pipelines

2010 ◽  
Vol 132 (7) ◽  
Author(s):  
Afshin Goharzadeh ◽  
Peter Rodgers ◽  
Chokri Touati
Keyword(s):  
High Speed ◽  
Sand Dune ◽  
Front Velocity ◽  
Intermittent Flow ◽  
Sand Particle ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Particle Mobility ◽  
Three Phase ◽  
Gas Ratio

This paper presents an experimental study of three-phase flows (air-water-sand) inside a horizontal pipe. The results obtained aim to enhance the fundamental understanding of sand transportation due to saltation in the presence of a gas-liquid two-phase intermittent flow. Sand dune pitch, length, height, and front velocity were measured using high-speed video photography. Four flow compositions with differing gas ratios, including hydraulic conveying, were assessed for sand transportation, having the same mixture velocity. For the test conditions under analysis, it was found that the gas ratio did not affect the average dune front velocity. However, for intermittent flows, the sand bed was transported further downstream relative to hydraulic conveying. It was also observed that the slug body significantly influences sand particle mobility. The physical mechanism of sand transportation was found to be discontinuous with intermittent flows. The sand dune local velocity (within the slug body) was measured to be three times higher than the averaged dune velocities, due to turbulent enhancement within the slug body.

scholarly journals Statistical characterization of two-phase slug flow in a horizontal pipe

2011 ◽  
Vol 33 (spe1) ◽  
pp. 251-258 ◽  
Author(s):  
J. N. E. Carneiro ◽  
R. Fonseca Jr. ◽  
A. J. Ortega ◽  
R. C. Chucuya ◽  
A. O. Nieckele ◽  
...  
Keyword(s):  
Slug Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Statistical Characterization

Pressure Drop for Oil-Water Two-phase Flow in Horizontal Pipe

2010 ◽  
Author(s):  
W. H. Liu ◽  
L. J. Guo ◽  
Liejin Guo ◽  
D. D. Joseph ◽  
Y. Matsumoto ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Oil Water
Sign in / Sign up

Export Citation Format

Share Document