Improving Film Die Flow Uniformity Using Optimization Methods Coupled with Finite Element Computational Fluid Dynamics (CFD) Analysis
-
P. C. Lee
Abstract
The aim of this study was to evaluate various optimization strategies to be used with computational fluid dynamics (CFD), in order to optimize the geometry for a polymer die to meet the dual objectives of uniform flow at the exit with minimal pressure drop. 3D finite element simulations using the numerically optimized geometry predict a more uniform flow than simulations using the baseline geometry. However, some of the initial optimized results yielded die geometries that would be impractical to fabricate. Additional constraints were placed on the allowable geometric parameters and solution space to push the optimization towards more feasible optimal solutions. Thus we have shown how CFD-based optimization methods, coupled with knowledge of die design technology and fabrication techniques can lead to the design of better performing polymer dies.
References
Chung, C. I., Lohkamp, D. T., “Designing Coat-hanger Dies by Power-law Approximation”, Modern Plastics, March (1976)Suche in Google Scholar
Crochet, M. J., Davies, A. R. and Walters, K.: Numerical Simulation of Non-Newtonian Flow, Elsevier, New York (1984)Suche in Google Scholar
Lebaal, N., Schmidt, F., Puissant, S. and Schlafli, D., “Design of Optimal Extrusion Die for a Range of Different Materials”, Polym. Eng. Sci., 49, 432–440 (2009)10.1002/pen.21298Suche in Google Scholar
Lee, P. C., Dietsche, L., Dooley, J. and Metwally, H., “Improving Flow Uniformity from a Film Die by Geometry Modification Using a Three Dimensional Finite Element Optimization Technique”, SPE ANTEC Tech. Papers, 57, 1259–1266 (2011)Suche in Google Scholar
Matsubara, Y., “Geometry Design of a Coat-hanger Die with Uniform Flow Rate and Residence Time across the Die Width”, Polym. Eng. Sci., 19, 169–172 (1979) 10.1002/pen.760190302Suche in Google Scholar
Metwally, H., Lee, P. C., “Optimization and Sensitivity Analysis of a Film Die,” SPE ANTEC Tech. Papers, 70, 1145–1149 (2012)Suche in Google Scholar
Michaeli, W., Kaul, S., “Approach of an Automatic Extrusion Die Optimization,” J. Polym. Eng., 24, 123–136 (2004)Suche in Google Scholar
Rigoni, E., Turco, A., “Metamodels for Fast Multi-Objective Optimization: Trading Off Global Exploration and Local Exploitation“, Proceeding of the 8th International Conference on Simulated Evolution and Learning, Springer-Verlag, Berlin, Heidelberg, p. 523–532 (2010) 10.1007/978-3-642-17298-4_56Suche in Google Scholar
Smith, D. E., Tortorelliav, D. A. and Tucker, C. L., “Optimal Design for Polymer Extrusion. Part I: Sensitivity Analysis for Nonlinear Steady-State Systems”, Comput. Methods Appl. Mech. Eng., 167, 283–302 (1998)10.1016/S0045-7825(98)00129-7Suche in Google Scholar
Smith, D. E., Tortorelliav, D. A. and Tucker, C. L., “Optimal Design for Polymer Extrusion. Part II: Sensitivity Analysis for Weakly-Coupled Nonlinear Steady-State Systems”, Comput. Methods Appl. Mech. Eng., 167, 303–323 (1998b)10.1016/S0045-7825(98)00130-3Suche in Google Scholar
Sun, Y., Gupta, M., “Effect of Elongational Viscosity on the Flow in a Flat Die”, Int. Polym. Proc., 20, 380–387 (2005) 10.3139/217.2016Suche in Google Scholar
Winter, H. E., Fritz, H. G., “Design of Dies for the Extrusion of Sheets and Annular Parisons: The Distribution Problem”, Polym. Eng. Sci.26, 543–553 (1986) 10.1002/pen.760260805Suche in Google Scholar
© 2015, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Extrusion Defects and Flow Instabilities of Molten Polymers
- Investigating Thermal Stability and Flame Retardant Properties of Synthesized Halloysite Nanotubes (HNT)/Ethylene Propylene Diene Monomer (EPDM) Nanocomposites
- Absorption Coefficient Measurement in Laser Transmission Welding of Thermoplastics
- Styrene/Isoprene/Styrene Thermoplastic Elastomer Prepared by Anionic Bulk Polymerization in a Twin-Screw Extruder
- Improving Film Die Flow Uniformity Using Optimization Methods Coupled with Finite Element Computational Fluid Dynamics (CFD) Analysis
- UV-Curable Technique of Magnetic Roller Soft Mold and Microstructure Pattern Replication
- Rheological Indicators for Environmental Stress Cracking Resistance of Polyethylene
- Effect of Alumina Particles Embedded in Natural Rubber Foams on Cell Morphology and Thermo-Mechanical Properties
- Effects of SEBS-g-MA on Rheology, Morphology and Mechanical Properties of PET/HDPE Blends
- Measurement and Numerical Simulation of Void and Warpage in Glass Fiber Reinforced Molded Chunky Parts
- Experimental Study for Extrusion of Polypropylene/Wood Flour Composites
- A Personal Perspective on the Use of Modelling Simulation for Polymer Melt Processing
- Slip Heating in Die Drool with Viscous Dissipation
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei Kakou Abstracts
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Extrusion Defects and Flow Instabilities of Molten Polymers
- Investigating Thermal Stability and Flame Retardant Properties of Synthesized Halloysite Nanotubes (HNT)/Ethylene Propylene Diene Monomer (EPDM) Nanocomposites
- Absorption Coefficient Measurement in Laser Transmission Welding of Thermoplastics
- Styrene/Isoprene/Styrene Thermoplastic Elastomer Prepared by Anionic Bulk Polymerization in a Twin-Screw Extruder
- Improving Film Die Flow Uniformity Using Optimization Methods Coupled with Finite Element Computational Fluid Dynamics (CFD) Analysis
- UV-Curable Technique of Magnetic Roller Soft Mold and Microstructure Pattern Replication
- Rheological Indicators for Environmental Stress Cracking Resistance of Polyethylene
- Effect of Alumina Particles Embedded in Natural Rubber Foams on Cell Morphology and Thermo-Mechanical Properties
- Effects of SEBS-g-MA on Rheology, Morphology and Mechanical Properties of PET/HDPE Blends
- Measurement and Numerical Simulation of Void and Warpage in Glass Fiber Reinforced Molded Chunky Parts
- Experimental Study for Extrusion of Polypropylene/Wood Flour Composites
- A Personal Perspective on the Use of Modelling Simulation for Polymer Melt Processing
- Slip Heating in Die Drool with Viscous Dissipation
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei Kakou Abstracts
