This example models flow of a polymer through an extrusion die with two outlets. This type of flow can for example be found in manufacturing processes of plastic parts. The polymer is assumed to be non-Newtonian, and can be modeled with a shear thinning Bird-Carreau viscosity model. The die is also assumed to be rotationally symmetric, allowing a reduction of the model geometry to an axisymmetric cross section.
This model is available as an automated tutorial by selecting Model Examples and Tutorials… > Fluid Dynamics > Non-Newtonian Flow in an Extrusion Die from the File menu. Or alternatively, follow the video tutorial or step-by-step instructions linked below.