UW-Madison polymer processing (EPD650): lesson 5, part 3.

This section of lesson 5 examines how to obtain the expression for the apparent viscosity as a function of shear rate for Phan-Thien Tanner's constitutive equation. The workflow that is introduced follows that established in EPD640 (an introduction to polymer rheology) where a similar result was obtained for the upper convected Maxwell equation. Here's some revision videos in case the material is unfamiliar: Convected constitutive eqns:    • Lesson 12, part : convected constitutive e...   Solving UCM for steady shear:    • Lesson 12, part 2: solving the UCM equatio...