Wavy-to-slug flow transition in slightly inclined gas–liquid pipe flow

AIChE Journal ◽  
1996 ◽  
Vol 42 (4) ◽  
pp. 901-909 ◽  
Author(s):  
Eric Grolman ◽  
Niels C. J. Commandeur ◽  
Eduard C. de Baat ◽  
Jan M. H. Fortuin
Keyword(s):  
Pipe Flow ◽  
Slug Flow ◽  
Flow Transition

Surfactant Use for Slug Flow Pattern Suppression in a Horizontal Pipe

2003 ◽  
Author(s):  
R. J. Wilkens ◽  
S. R. Glassmeyer ◽  
G. J. Rosebrock ◽  
K. M. Storage ◽  
T. M. Storage
Keyword(s):  
Flow Pattern ◽  
Liquid Flow ◽  
Pipe Flow ◽  
Slug Flow ◽  
Flow Patterns ◽  
Flow Transition ◽  
Horizontal Pipe ◽  
Surfactant Additive ◽  
Gas Liquid Flow

A set of experiments was performed to study flow pattern suppression in gas-liquid pipe flow by means of surfactant additive. Results suggest that addition of the surfactant to gas-liquid flow significantly reduces the occurrence of slug flow. In addition, previously unreported flow patterns were observed to exist between slug and dispersed bubble flows. It is concluded that new mechanisms for slug flow transition need to be considered.

Transient Gas-Liquid Flow in Upward Sloping Pipes, Approaching the Wavy-to-Slug Flow Transition

1996 ◽  
Vol 118 (4) ◽  
pp. 729-735 ◽  
Author(s):  
Eric Grolman ◽  
Jan M. H. Fortuin
Keyword(s):  
Steady State ◽  
Pipe Flow ◽  
Slug Flow ◽  
Transient Behavior ◽  
Hyperbolic Partial Differential Equations ◽  
Shear Stresses ◽  
Flow Transition ◽  
Interfacial Areas ◽  
On Line ◽  
Gas Liquid Flow

A model is presented for transient, cocurrent gas-liquid pipe flow in the stratified-smooth and stratified-wavy flow regimes. It is based on the equations of continuity and motion in the direction of flow and results in two hyperbolic partial differential equations, which are solved numerically using the combined methods of lines (Schiesser, 1991) and characteristics (Stoker, 1957). In wavy gas-liquid pipe flow, three different interfacial areas and corresponding shear stresses are identified. Three friction-factor correlations were derived on the basis of an extensive set of 2500 steady-state measurements. The transient behavior of inclined gas-liquid pipe flow is successfully simulated and compares well with the results obtained from on-line measurements, right up to the onset of slug flow.

Surfactant Use for Slug Flow Pattern Suppression and New Flow Pattern Types in a Horizontal Pipe

2005 ◽  
Vol 128 (1) ◽  
pp. 164-169 ◽  
Author(s):  
R. J. Wilkens ◽  
D. K. Thomas ◽  
S. R. Glassmeyer
Keyword(s):  
Flow Pattern ◽  
Liquid Flow ◽  
Pipe Flow ◽  
Slug Flow ◽  
Flow Patterns ◽  
Flow Transition ◽  
Water Pipe ◽  
Horizontal Pipe ◽  
Surfactant Additive ◽  
Gas Liquid Flow

A set of experiments was performed to study flow pattern suppression in horizontal air-water pipe flow by means of surfactant additive. Results suggest that addition of the surfactant to the gas-liquid flow significantly reduces the occurrence of slug flow. In addition, previously unreported flow patterns were observed to exist between slug and dispersed bubble flows. It is concluded that new mechanisms for slug flow transition need to be considered.

scholarly journals Slug Flow Transition in Horizontal Gas-Liquid Flow

1984 ◽  
Vol 27 (234) ◽  
pp. 2771-2778
Author(s):  
Eiji HIHARA ◽  
Takamoto SAITO
Keyword(s):  
Liquid Flow ◽  
Slug Flow ◽  
Flow Transition ◽  
Gas Liquid Flow

Unified Model for Gas-Liquid Pipe Flow Via Slug Dynamics: Part 1 — Model Development

2002 ◽  
Author(s):  
Hong-Quan Zhang ◽  
Qian Wang ◽  
Cem Sarica ◽  
James P. Brill
Keyword(s):  
Flow Pattern ◽  
Pipe Flow ◽  
Slug Flow ◽  
Control Volume ◽  
Model Development ◽  
Flow Patterns ◽  
Hydrodynamic Characteristics ◽  
Momentum Exchange ◽  
Two Phase ◽  
Inclination Angles

A unified hydrodynamic model is developed for predictions of flow pattern transitions, pressure gradient, liquid holdup and slug characteristics in gas-liquid pipe flow at different inclination angles from −90 to 90 deg. The model is based on the dynamics of slug flow, which shares transition boundaries with all the other flow patterns. By use of the entire film zone as the control volume, the momentum exchange between the slug body and the film zone is introduced into the momentum equations for slug flow. The equations of slug flow are used not only to calculate the slug characteristics, but also to predict transitions from slug flow to other flow patterns. Significant effort has been made to eliminate discontinuities among the closure relationships through careful selection and generalization. The flow pattern classification is also simplified according to the hydrodynamic characteristics of two-phase flow.

The role of streamwise perturbations in pipe flow transition

2006 ◽  
Vol 18 (7) ◽  
pp. 074104 ◽  
Author(s):  
Fernando Mellibovsky ◽  
Alvaro Meseguer
Keyword(s):  
Pipe Flow ◽  
Flow Transition

scholarly journals Experimental Study of Bubbly-Slug Flow Transition Criteria in an Vertical Circular Tube by Using WMS

2020 ◽  
Vol 8 ◽  
Author(s):  
Shimo Yu ◽  
Xiao Yan ◽  
Lei Zhou ◽  
Aiwei Xu ◽  
Junyi Zhang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Slug Flow ◽  
Circular Tube ◽  
Flow Transition ◽  
Transition Criteria
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