A large pipe with outer diameter (Dout= 30 cm) contains two types of polymers in different layers. T1 = 2mm, T2 = 8mm as in the graph. These are very thin layers relative to the radius of the pipe. The pipe needs two extruders to supply the two different polymer melts to a multi-manifold piping die. The two fluids flow separately in the die by a thin metal divider, and only combined together at the die exit (simplifies solution of the question). The flow length inside the die is L = 0.25 m. When the two layers of polymer combine at the exit, they must have the same shear stress must have the same shear stress. The inlet pressure to the die for layer A is 4 MPa, determine the flow rate for Layer A and Layer B.

Polymer in layer A: melt density 990 kg/m3 and solid density of 1140 kg/m3);

Polymer in layer B: melt density 800 kg/m3 and solid density of 945 kg/m3):

A=50000.2B=80000.6