Scale Relations for Mold Filling Simulation in Resin Transfer Molding

Like other types of fluid flow, mold filling in resin transfer molding (RTM) may be simulated experimentally using small-scale model tests. The scale relation between a small mold and a full-size mold is the key factor in such simulations. This paper presents a derivation of the scale relations for mold filling in the RTM process for isothermal conditions and verification of the scale relations by a simplified mold-filling simulation model and by scale experiments. The use of scale relations in the RTM process is demonstrated.