Document Abstract
ANTEC Papers: 2004
Two-Dimensional Slip-Flow Model of Rotational Molding
A new slip-flow model is developed to simplify and to overcome the current numerical difficulties of two-dimensional rotomolding model in predicting the internal air temperature inside the mold during the rotomolding process. The lumped-parameter system and coincident node technique have been incorporated with the Galerkin finite element method to address these rotomolding problems. This proposed methodology allows macroscopic "multi-layered deposition" of heating polymer powder onto the mold surface in order to account for the complex thermal interactions between the internal air and its surroundings (mold and polymer). A semi-implicit method is applied to deal with the overall internal air temperature inside the mold. The predicted results agree with the available experimental data for rotomolded parts of cross sectional thicknesses up to 12 mm.