Thermal dispersion in resin transfer molding

Richard B. Dessenberger, Charles L. Tucker

Research output: Contribution to conferencePaperpeer-review


This investigation focuses on the effects of thermal dispersion in Resin Transfer Molding (RTM). A set of volume-average balance equations suitable for modeling mold filling in RTM is described and implemented in a numerical mold filling simulation. The energy equation is based on the assumption of local thermal equilibrium and includes a dispersion term. Thermal dispersion is an enhanced transport of heat due to local fluctuations in the fluid velocity and temperature away from their average values. Non-isothermal mold filling experiments are performed on a center-gated disk mold to investigate and quantify dispersion effects. Good agreement is found between the experimentally measured and numerically predicted temperatures, and a function for the transverse dispersion coefficient in a random glass fiber mat is determined. The results indicate that thermal dispersion is important in RTM processes and must be included in simulations to obtain accurate predictions.

Original languageEnglish (US)
Number of pages20
StatePublished - 1994
EventProceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA
Duration: Nov 6 1994Nov 11 1994


OtherProceedings of the 1994 International Mechanical Engineering Congress and Exposition
CityChicago, IL, USA

ASJC Scopus subject areas

  • General Engineering


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