5. Study of noncircular die flow The shape and dimension of a noncircular die cross-section is given in the sketch below. The viscosity of the polymer melt flowing inside the die channel can be modeled using the following equation: =1000[1+(5)2]0.3Pas Page 1 of 2 Use Comsol to study the flow problem inside the die. The length of the die (in z direction) is assumed to be much larger than its lateral dimension. The velocity in z direction is governed by the following equation: x(xw)+y(yw)=zp What you turn in should include - A plot of the velocity distribution at a pressure gradient of p/z=106Pa/mm - A plot of the viscosity distribution at a pressure gradient of p/z=106Pa/mm - A plot of the viscous dissipation (2) at a pressure gradient of p/z=106Pa/mm 5. Study of noncircular die flow The shape and dimension of a noncircular die cross-section is given in the sketch below. The viscosity of the polymer melt flowing inside the die channel can be modeled using the following equation: =1000[1+(5)2]0.3Pas Page 1 of 2 Use Comsol to study the flow problem inside the die. The length of the die (in z direction) is assumed to be much larger than its lateral dimension. The velocity in z direction is governed by the following equation: x(xw)+y(yw)=zp What you turn in should include - A plot of the velocity distribution at a pressure gradient of p/z=106Pa/mm - A plot of the viscosity distribution at a pressure gradient of p/z=106Pa/mm - A plot of the viscous dissipation (2) at a pressure gradient of p/z=106Pa/mm