Hadi Sobhani, Patrick D. Anderson, Han H. E. Meijer, Mir Hamid Reza Ghoreishy and Mohammad Razavi-Nouri
The combination of the fictitious domain method and the finite element method gives rise to a robust scheme for the non-isothermal simulation of the flow of polymeric melts in co-rotating twin screw extruders (TSEs). The numerical oscillations of the results are reduced applying the streamline-upwind/Petrov–Galerkin technique. Using the shear rate distribution, the local viscous dissipation in different regions of TSEs is calculated. Maximum values of the shear rate appear in both the intermeshing region and the screwy tips and therefore, the maximum temperature is observed in these regions.