The Effect of Weissenberg Number on the Behaviour of Viscoelastic Fluid Flows in Expansion Geometry

Simulation of forming process in order to investigate the effects of machinery design and operating condition on product quality and production costs is an efficient andeffective method in polymer processing industries to optimize product quality and cost. Nowadays, evaluation of the polymerprocessing phenomena has an effective role in the production of food, healthy tools, and other fields. In this work, we use OpenFOAM software in order to weissenberg number(We)effect on the behaviour of viscoelastic fluid flows such as Oldroyd-B, FENE-P, and Linear Phan-Thien-Tanner(L-PTT) in expansion channels