Non-Newtonian fluid models introduced in Mathematica 14 throw "Indeterminate expression" type errors for an extension of the power law fluid example to the case of a Herschel - Bulkley - Papanastasiou Fluid. The tutorial example can be referred at "PDEModels/tutorial/FluidDynamics/LaminarFlow" under Power law example subsection. The example together with its extension can be referred in the attached notebook.
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