Extended Regression Models for Predicting the Pumping Capability and Viscous Dissipation of Two-Dimensional Flows in Single-Screw Extrusion

@inproceedings{Roland2019ExtendedRM,
  title={Extended Regression Models for Predicting the Pumping Capability and Viscous Dissipation of Two-Dimensional Flows in Single-Screw Extrusion},
  author={Wolfgang Roland and Michael Kommenda and Christian Marschik and J{\"u}rgen Miethlinger},
  booktitle={Polymers},
  year={2019}
}
Generally, numerical methods are required to model the non-Newtonian flow of polymer melts in single-screw extruders. Existing approximation equations for modeling the throughput⁻pressure relationship and viscous dissipation are limited in their scope of application, particularly when it comes to special screw designs. Maximum dimensionless throughputs of Π V < 2.0 , implying minimum dimensionless pressure gradients Π p , z ≥ - 0.5 for low power-law exponents are captured. We present analytical… CONTINUE READING

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