...from a Rough Wall in Shear Flow of Herschel–Bulkley...
The fluid viscosity depends on the local shear rate and is described by the Herschel–Bulkley rheological model 𝜇=(𝑘𝛾˙𝑛+𝜏𝑦)/𝛾˙μ=(kγ˙n+τy)/γ˙, where k is the flow consistency factor, n is the power law index, 𝜏𝑦τy is the yield stress, and 𝛾˙γ...