Ansys Learning Forum Forums Discuss Simulation Fluids I need help with simulating the flow of a polymer through the hot end of an extruder. Reply To: I need help with simulating the flow of a polymer through the hot end of an extruder.

ydai
Ansys Employee
Hello Amesh Based on your description, you want to model the polymer entering the inlet as the solid state, and gets heated up to be melted into liquid and flows out of the pipe.
This is a simulation which requires the model feature of phase change on which Polyflow does not have. Polyflow is a single phase flow solver on polymer fluid with high viscosity. Therefore polyflow can not be applied to model this application.
Fluent does have solidification and melting model in general, but it can not model the flow on material which enters the domain as solid, since the velocity in the solid material is zero which does not flow and is not allowed to enter the flow inlet of a computation domain. Therefore you may want to reconsider your flow with different condition so Fluent may be able to be applied.
Thanks
Yi