Analysis of Flow and Heat Transfer in Liquid Composite Molding
-
Abstract
An analysis of flow and heat transfer in Liquid Composite Molding (LCM) is presented. Analytical solutions for the velocity profiles including the boundary effects and temperature distributions are derived for constant viscosity fluids. The heat transfer during mold filling is also analyzed numerically. It is found that the boundary effect has a significant influence on heat transfer when the Reynolds number, Res, is greater than 1. When the Reynolds number is less than 1, the boundary effect on heat transfer can be negligible and Darcy's law is applicable. The results also show that the inertia effect can be neglected during mold filling in LCM. Experiments on heat transfer with a non-reactive fluid lead to measurements of the dispersion effect and test of the boundary effect on heat transfer. Several non-isothermal mold filling and curing experiments on two rather different reactive systems lead to an assessment of the factors a model must include to capture the curing behavior.
© 2000, Carl Hanser Verlag, Munich
Articles in the same Issue
- Editorial
- Third of a Series: Pioneering Polymer Industry Developments — The First Successful Mathematical-Computer Modeling of A Complex Industrial Process: Toyobo and Melt Spinning
- Screw Extrusion / Mixing
- Polymer Flow Velocity in the Helical Channel in Dependence of a Coordinate System
- Non-Isothermal Transient Startup of A Starved Flow Modular Co-Rotating Twin Screw Extruder
- Numerical Simulations and Experiments in a Double-Couette Flow Geometry
- Dynamic Analysis of Melting in Injection Extruder
- Extrusion Die
- Production of Pipe with Uniform Wall Thickness: How to Compensate for Gravity Sag
- Fiber and Film
- Assessment of LDPE Melt Strength by Use of Rheotens Mastercurves
- Molding
- Analysis of Flow and Heat Transfer in Liquid Composite Molding
- Solidification Criterion on Shrinkage Predictions for Semi-crystalline Injection Moulded Samples
- Polymer Melt Rheology at High Shear Rates
- Factors Affecting the Stability of Gas Penetration in Gas Assist Injection Molded Bifurcation Parts
- Transient Polymer Flow Rate in Injection Mold Filling
- Flow Analysis of Injection-Press Molding Process
- Properties of Injection Molded In Situ Composites Based on PPS and a Melt Processable Glass
- A New Approach in Offline-Optimization of the Injection Molding Process
Articles in the same Issue
- Editorial
- Third of a Series: Pioneering Polymer Industry Developments — The First Successful Mathematical-Computer Modeling of A Complex Industrial Process: Toyobo and Melt Spinning
- Screw Extrusion / Mixing
- Polymer Flow Velocity in the Helical Channel in Dependence of a Coordinate System
- Non-Isothermal Transient Startup of A Starved Flow Modular Co-Rotating Twin Screw Extruder
- Numerical Simulations and Experiments in a Double-Couette Flow Geometry
- Dynamic Analysis of Melting in Injection Extruder
- Extrusion Die
- Production of Pipe with Uniform Wall Thickness: How to Compensate for Gravity Sag
- Fiber and Film
- Assessment of LDPE Melt Strength by Use of Rheotens Mastercurves
- Molding
- Analysis of Flow and Heat Transfer in Liquid Composite Molding
- Solidification Criterion on Shrinkage Predictions for Semi-crystalline Injection Moulded Samples
- Polymer Melt Rheology at High Shear Rates
- Factors Affecting the Stability of Gas Penetration in Gas Assist Injection Molded Bifurcation Parts
- Transient Polymer Flow Rate in Injection Mold Filling
- Flow Analysis of Injection-Press Molding Process
- Properties of Injection Molded In Situ Composites Based on PPS and a Melt Processable Glass
- A New Approach in Offline-Optimization of the Injection Molding Process
