Modeling of consistent rheological and thermodynamic material data for process simulations

Abstract

Modeling of consistent rheological and thermodynamic material data for process simulations Any process simulation in polymer engineering is based on conservation equations, which refer to comprehensive knowledge about material properties. These empirically examined properties, such as viscosity, specific enthalpy (specific heat capacity), density, and thermal conductivity are represented in the simulation via mathematical material models. However, the way of gathering rheological and thermodynamic material data influences the accuracy of the material model and thus the simulation output. Hence, the importance of an accurate material model is obvious. With respect to this the influence of measuring methods on the material model and a procedure to model consistent material data at process-relevant heating/cooling rates is described. Modellierung konsistenter rheologischer und thermodynamischer Materialdaten für die Prozesssimulation