I am working on Non-Isothermal PE-100 pipe extrusion. I am applying cross law for viscosity dependence on shear rate and Arrhenius law for viscosity dependence on temperature in direct extrusion at POLYFLOW. When i run, it shows solution is not converge. When I change the viscosity to be not temperature dependent, then the solution can be converged.
So there is any way to make it converge and in the same time take the temperature into account to determine the viscosity? where I am wrong? I am struck here. Kindly help me.
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