Ebook: The Influence of Polymer Additives on Velocity and Temperature Fields: Symposium Universität — GH — Essen, Germany, June 26–28, 1984

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Content:
Front Matter....Pages I-XXIX
Front Matter....Pages 1-1
Turbulent Drag Reduction by Polymer Additives: A Survey....Pages 3-21
Front Matter....Pages 23-23
A Review on Extensional Viscosity....Pages 25-28
An Experimental Study of Polymer Induced Drag for Flows Through Porous Medium....Pages 29-39
Front Matter....Pages 41-41
Molecular Parameters as a Basis of Structure-Property-Relations in the Flow of Polymer Solutions....Pages 43-60
Drag Reduction of Non-Ionic Surfactant Mixtures....Pages 61-70
The Influence of Molecular Weight and Molecular Weight Distribution on Drag Reduction and Mechanical Degradation in Turbulent Flow of Highly Dilute Polymer Solutions....Pages 71-85
Front Matter....Pages 87-87
Influence of Molecular Parameters on Laminar Non-Newtonian and on Turbulent Flows of Dilute Polymer Solutions....Pages 89-100
The Peculiarities of the Structure of Wall Turbulence and the Mechanism of Drag Reduction by Polymer Additives....Pages 101-106
The Influence of Molecular Mass Distribution, Size and Elasticity of Macromolecules on Friction Reduction Effect....Pages 107-118
Characterization of Dilute Polyacrylamide and Polystyrene Solutions by Means of Porous Media Flow....Pages 119-129
The Effect of Grafted and Ungrafted Guargum on Turbulent Flow of Water and on Hydraulic Conductivity of Soil....Pages 131-139
Front Matter....Pages 141-141
Some Fringe Effects of the Flow on the Macromolecules in Dilute Polymer and on Their Non-Newtonian Behaviour....Pages 143-162
Aging of Aqueous Polymer Solutions....Pages 163-172
Model for Effects of Degradation on Polymer Drag Reduction....Pages 173-179
Front Matter....Pages 181-181
Turbulence Measurements with Viscoelastic Flow in an Open Channel....Pages 183-198
A Turbulence Model for Drag Reduction Dilute Polymer Solutions in Boundary Layer on a Flat Plate....Pages 199-206
Front Matter....Pages 207-207
The Structure near the Wall in Turbulent Shear Flow....Pages 209-221
Statistical Measurements in the Turbulent Flow of Dilute Drag-Reducing Polymer Solutions in a Round Tube....Pages 223-232
The Vorticity Diffusion of ?-Vortices in Drag Reducing Solutions....Pages 233-247
Front Matter....Pages 249-249
Influence of Polymer Additives on Neutral Stability of G?rtler Vortices....Pages 251-260
Front Matter....Pages 249-249
Laser-Doppler Measurements of Vortex-Shedding Past Small Circular Cylinders in Dilute Polymer Solutions....Pages 261-270
Influence of Polymer Additives on Turbulence in a Mixing Layer....Pages 271-278
The Turbulent Mixing of Viscoelastic Fluids in Pipe Flow....Pages 279-289
Front Matter....Pages 291-291
A Qualitative Understanding of Drag Reduction by Polymers....Pages 293-310
Predictions of Turbulent Drag Reduction for a Linear Viscoelastic Fluid....Pages 311-324
An Engineering Approach to Modeling Complex Flow Behaviour of Polymer Solutions....Pages 325-334
Front Matter....Pages 335-335
Heterogeneous Drag Reduction in Turbulent Pipe Flow....Pages 337-348
Annular Injection of Concentrated Polymer Solutions into the Wall Region of a Turbulent Pipe Flow....Pages 349-358
Turbulence Structure of a Developing Duct Flow with Near-Wall Injection of Drag Reducing Polymers....Pages 359-368
Front Matter....Pages 369-369
Today and Future Possibilities of Industrial Applications of Drag Reduction....Pages 371-395
Front Matter....Pages 397-397
Effect of Polymer Solutions on Tip Vortex Cavitation....Pages 399-410
The Influence of Non-Newtonian Liquids on the Cavitation Thresholds and on the Pressure Pulse Velocity in Two-Phase Mixtures....Pages 411-421
Front Matter....Pages 423-423
Nucleate Boiling in Drag-Reducing Polymer Solutions....Pages 425-435
Mass Transfer in Elongational Flows of Dilute Polymer Solutions....Pages 437-446

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Content:
Front Matter....Pages I-XXIX
Front Matter....Pages 1-1
Turbulent Drag Reduction by Polymer Additives: A Survey....Pages 3-21
Front Matter....Pages 23-23
A Review on Extensional Viscosity....Pages 25-28
An Experimental Study of Polymer Induced Drag for Flows Through Porous Medium....Pages 29-39
Front Matter....Pages 41-41
Molecular Parameters as a Basis of Structure-Property-Relations in the Flow of Polymer Solutions....Pages 43-60
Drag Reduction of Non-Ionic Surfactant Mixtures....Pages 61-70
The Influence of Molecular Weight and Molecular Weight Distribution on Drag Reduction and Mechanical Degradation in Turbulent Flow of Highly Dilute Polymer Solutions....Pages 71-85
Front Matter....Pages 87-87
Influence of Molecular Parameters on Laminar Non-Newtonian and on Turbulent Flows of Dilute Polymer Solutions....Pages 89-100
The Peculiarities of the Structure of Wall Turbulence and the Mechanism of Drag Reduction by Polymer Additives....Pages 101-106
The Influence of Molecular Mass Distribution, Size and Elasticity of Macromolecules on Friction Reduction Effect....Pages 107-118
Characterization of Dilute Polyacrylamide and Polystyrene Solutions by Means of Porous Media Flow....Pages 119-129
The Effect of Grafted and Ungrafted Guargum on Turbulent Flow of Water and on Hydraulic Conductivity of Soil....Pages 131-139
Front Matter....Pages 141-141
Some Fringe Effects of the Flow on the Macromolecules in Dilute Polymer and on Their Non-Newtonian Behaviour....Pages 143-162
Aging of Aqueous Polymer Solutions....Pages 163-172
Model for Effects of Degradation on Polymer Drag Reduction....Pages 173-179
Front Matter....Pages 181-181
Turbulence Measurements with Viscoelastic Flow in an Open Channel....Pages 183-198
A Turbulence Model for Drag Reduction Dilute Polymer Solutions in Boundary Layer on a Flat Plate....Pages 199-206
Front Matter....Pages 207-207
The Structure near the Wall in Turbulent Shear Flow....Pages 209-221
Statistical Measurements in the Turbulent Flow of Dilute Drag-Reducing Polymer Solutions in a Round Tube....Pages 223-232
The Vorticity Diffusion of ?-Vortices in Drag Reducing Solutions....Pages 233-247
Front Matter....Pages 249-249
Influence of Polymer Additives on Neutral Stability of G?rtler Vortices....Pages 251-260
Front Matter....Pages 249-249
Laser-Doppler Measurements of Vortex-Shedding Past Small Circular Cylinders in Dilute Polymer Solutions....Pages 261-270
Influence of Polymer Additives on Turbulence in a Mixing Layer....Pages 271-278
The Turbulent Mixing of Viscoelastic Fluids in Pipe Flow....Pages 279-289
Front Matter....Pages 291-291
A Qualitative Understanding of Drag Reduction by Polymers....Pages 293-310
Predictions of Turbulent Drag Reduction for a Linear Viscoelastic Fluid....Pages 311-324
An Engineering Approach to Modeling Complex Flow Behaviour of Polymer Solutions....Pages 325-334
Front Matter....Pages 335-335
Heterogeneous Drag Reduction in Turbulent Pipe Flow....Pages 337-348
Annular Injection of Concentrated Polymer Solutions into the Wall Region of a Turbulent Pipe Flow....Pages 349-358
Turbulence Structure of a Developing Duct Flow with Near-Wall Injection of Drag Reducing Polymers....Pages 359-368
Front Matter....Pages 369-369
Today and Future Possibilities of Industrial Applications of Drag Reduction....Pages 371-395
Front Matter....Pages 397-397
Effect of Polymer Solutions on Tip Vortex Cavitation....Pages 399-410
The Influence of Non-Newtonian Liquids on the Cavitation Thresholds and on the Pressure Pulse Velocity in Two-Phase Mixtures....Pages 411-421
Front Matter....Pages 423-423
Nucleate Boiling in Drag-Reducing Polymer Solutions....Pages 425-435
Mass Transfer in Elongational Flows of Dilute Polymer Solutions....Pages 437-446
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