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Tackles Complexities of Non-Isothermal Flows
Complex thermal behaviors are often present in polymer processing,
and POLYFLOW 3.7 contains several new features to help capture these
important phenomena. For extrusion processes, a new model reproduces
the non-linear mechanical or thermal (Arrhenius law) dependence
of the slip coefficient. This is useful for studying viscous heating
inside single- or twin-screw extruders, where, due to small clearances
and high rotational speed, large temperature increases can occur.
It is also useful for studying slipping behavior in extrusion dies
and other components of the production line.
Complicated non-isothermal behavior is also a challenge for the
analysis of blow molding and fiber spinning processes. Non-isothermal
viscoelastic KBKZ models are now available to more accurately simulate
the thermoforming task.
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