Viscoelastic models in Polyflow and outputs
 

Hi all,

I am running simulations to measure swell of HDPE extrudate using Polyflow. I can use the differential and simplified viscoelastic models but the integral models are not active and hence I am not able to select it. Could someone please explain to me why that is?

And, why is it that I cannot output viscosity as a postprocessor subtask when I use the differential models but with the simplified viscoelastic I am able to?

Any help is appreciated. Thank you in advance.

Ashish Singh
PhD Candidate
NYU