Numerical study of polymer mixtures in complex geometry

Simulation of polymer multifluid was done by using of Adaptive Mapping Method (AMM). The flow of power-law fluid through a bob and cup rheometry has been chosen as a prototype example due to the previous simulation in the literature. The equation of motion and continuity are discretized with the finite volume method in a non-staggered grid with an upwind scheme for the velocities. After that, the algebraic form of equations is solved with the conjugate gradient squared method (CGS), then the marker is tracked using AMM logic. The polyethylene-polyethylene and polyethylene-polystyrene are selected as homogeneous and heterogeneous mixtures, respectively. Morphology results showed good agreement with literature case study numerical results. The FVM is proven quite capable of numerically handling the non-newtonian model of multiphase fluid in the context of AMM in complex geometry. High accuracy and lower time consumption is the strength of our package.