Karman Vortices in the Flow of Drag-reducing Polymer Solutions

Nature ◽  
1970 ◽  
Vol 225 (5231) ◽  
pp. 445-446 ◽  
Author(s):  
V. N. KALASHNIKOV ◽  
A. M. KUDIN
Keyword(s):  
Polymer Solutions ◽  
Drag Reducing Polymer

Diffusion of drag-reducing polymer solutions within a rough-walled turbulent boundary layer

2010 ◽  
Vol 22 (4) ◽  
pp. 045102 ◽  
Author(s):  
Brian R. Elbing ◽  
David R. Dowling ◽  
Marc Perlin ◽  
Steven L. Ceccio
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Polymer Solutions ◽  
Drag Reducing Polymer

Gas-liqud slug flow with drag-reducing polymer solutions

AIChE Journal ◽  
1972 ◽  
Vol 18 (4) ◽  
pp. 744-750 ◽  
Author(s):  
R. G. Rosehart ◽  
D. S. Scott ◽  
E. Rhodes
Keyword(s):  
Slug Flow ◽  
Polymer Solutions ◽  
Drag Reducing Polymer

Steady and dynamic shear properties of non-aqueous drag-reducing polymer solutions

1995 ◽  
Vol 34 (6) ◽  
pp. 586-600 ◽  
Author(s):  
Carlos Tiu ◽  
Tony Moussa ◽  
Pierre J. Carreau
Keyword(s):  
Polymer Solutions ◽  
Dynamic Shear ◽  
Shear Properties ◽  
Drag Reducing Polymer

Dynamical behaviour of drag-reducing polymer solutions

1979 ◽  
Vol 5 ◽  
pp. 475-495 ◽  
Author(s):  
O. Scrivener ◽  
C. Berner ◽  
R. Cressely ◽  
R. Hocquart ◽  
R. Sellin ◽  
...  
Keyword(s):  
Polymer Solutions ◽  
Dynamical Behaviour ◽  
Drag Reducing Polymer

Heat transfer to drag-reducing polymer solutions

AIChE Journal ◽  
1969 ◽  
Vol 15 (2) ◽  
pp. 294-297 ◽  
Author(s):  
K. A. Smith ◽  
G. H. Keuroghlian ◽  
P. S. Virk ◽  
E. W. Merrill
Keyword(s):  
Heat Transfer ◽  
Polymer Solutions ◽  
Drag Reducing Polymer

Nucleate boiling in drag‐reducing polymer solutions

1983 ◽  
Vol 27 (1) ◽  
pp. 59-76 ◽  
Author(s):  
D. D Paul ◽  
S. I. Abdel‐Khalik
Keyword(s):  
Polymer Solutions ◽  
Nucleate Boiling ◽  
Drag Reducing Polymer

Laminar, transitional and turbulent annular flow of drag-reducing polymer solutions

2010 ◽  
Vol 165 (19-20) ◽  
pp. 1357-1372 ◽  
Author(s):  
A. Japper-Jaafar ◽  
M.P. Escudier ◽  
R.J. Poole
Keyword(s):  
Annular Flow ◽  
Polymer Solutions ◽  
Drag Reducing Polymer

scholarly journals Investigation of Surfactant-Polymer Interactions Using Rheology and Surface Tension Measurements

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2302 ◽  
Author(s):  
Jia Yang ◽  
Rajinder Pal
Keyword(s):  
Surface Tension ◽  
Polymer Solutions ◽  
Flow Behavior ◽  
Polymer Concentration ◽  
Critical Aggregation Concentration ◽  
Ionic Surfactant ◽  
Marginal Effect ◽  
Anionic Polymer ◽  
Flow Behavior Index ◽  
Drag Reducing Polymer

The interactions between surfactants and a drag-reducing polymer were investigated at a low polymer concentration of 500 ppm, using measurements of the rheology and surface activity of surfactant-polymer solutions. A well-known drag-reducing polymer (anionic sodium carboxymethyl cellulose) and five different surfactants (two anionic, two non-ionic, and one zwitterionic) were selected for the interaction studies. The surfactant-polymer solutions were shear thinning in nature, and they followed the power law model. The interaction between the surfactant and polymer had a strong effect on the consistency index of the solution and a marginal effect on the flow behavior index. The surface tension versus surfactant concentration plots were interpreted in terms of the interactions between surfactant and polymer. The critical aggregation concentration (CAC) of the surfactant was estimated based on the surface tension and rheological data. The CAC values of the same charge surfactants as that of the polymer were found to be significantly higher than other combinations of surfactant and polymer, such as non-ionic surfactant/anionic polymer, and zwitterionic surfactant/anionic polymer.

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