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Compressive Squeeze Flow of Generalized Newtonian Fluids with Apparent Wall Slip

  • A. Lawal and D. M. Kalyon
Published/Copyright: June 6, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 15 Issue 1

Abstract

The compressive squeeze flow is encountered in various processes like compression molding and in rheometry. It involves a complex deformation field driven by both shear and normal stresses. Here the flow and deformation field generated during the compressive squeeze flow of generalized Newtonian fluids, subject to wall slip, was analyzed using both numerical simulation based on the 2-D Finite Element Method and the 1-D analytical model, which is based on the lubrication assumption. The agreement between the analytical and numerical solutions deteriorates with increasing Navier's wall slip coefficient and the increasing yield stress value of the viscoplastic fluid. The lubrication assumption is valid under various squeeze flow conditions but numerical analysis in conjunction with experimental studies are necessary to determine the ranges of material parameters and operating conditions for which the lubrication assumption is valid.

* Mail address: Prof. Dr. D. M. Kalyon, Highly Filled Materials Institute, Dept. of Chemical, Biochemical and Materials Engineering, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, NJ 07030, USA
Received: 1999-5-19
Accepted: 1999-9-16
Published Online: 2013-06-06
Published in Print: 2000-03-01

© 2000, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Editorial
  2. Sixth of a Series: Pioneer of Man-Made Fibers and Solution Spinning Louis-Marie-Hilaire Bernigaud, Comte de Chardonnet
  3. Screw Extrusion
  4. A Network Analysis of a Screw Mixing Zone
  5. Experimental and Numerical Study of Rhomboidal Mixing Sections
  6. Reactive Extrusion
  7. Bulk Polymerization of ∊-Caprolactone in Twin Screw Extruder
  8. Die Extrusion
  9. Computer Aided Optimisation of Profile Extrusion Dies
  10. Fibers and Films
  11. An Investigation of Venturi and Coanda Effects in Blown Film Cooling
  12. Blends
  13. Solidification Behaviour of PA6/iPP Blends at High Cooling Rates
  14. Polymer Blends with Fibrillar Phase Morphology Prepared by Self-Reinforcing Technique
  15. Molding
  16. Compressive Squeeze Flow of Generalized Newtonian Fluids with Apparent Wall Slip
  17. Comparative Study of Ziegler-Natta and Metallocene Based Polypropylenes in Injection Molding
  18. The Pressure-Volume-Temperature Behavior Polyethylene Melts
  19. Evaluation of the Thermal Behaviour of Injection Moulds
  20. Polymer Solidification under Pressure and High Cooling Rates
https://doi.org/10.3139/217.1561

Articles in the same Issue

  1. Editorial
  2. Sixth of a Series: Pioneer of Man-Made Fibers and Solution Spinning Louis-Marie-Hilaire Bernigaud, Comte de Chardonnet
  3. Screw Extrusion
  4. A Network Analysis of a Screw Mixing Zone
  5. Experimental and Numerical Study of Rhomboidal Mixing Sections
  6. Reactive Extrusion
  7. Bulk Polymerization of ∊-Caprolactone in Twin Screw Extruder
  8. Die Extrusion
  9. Computer Aided Optimisation of Profile Extrusion Dies
  10. Fibers and Films
  11. An Investigation of Venturi and Coanda Effects in Blown Film Cooling
  12. Blends
  13. Solidification Behaviour of PA6/iPP Blends at High Cooling Rates
  14. Polymer Blends with Fibrillar Phase Morphology Prepared by Self-Reinforcing Technique
  15. Molding
  16. Compressive Squeeze Flow of Generalized Newtonian Fluids with Apparent Wall Slip
  17. Comparative Study of Ziegler-Natta and Metallocene Based Polypropylenes in Injection Molding
  18. The Pressure-Volume-Temperature Behavior Polyethylene Melts
  19. Evaluation of the Thermal Behaviour of Injection Moulds
  20. Polymer Solidification under Pressure and High Cooling Rates
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