Pseudospectral calculations of stress-induced concentration changes in viscometric flows of polymer solutions
We investigate the flow of dilute polymer solutions in viscometric devices where the polymer concentration is allowed to vary due to the existence of nonzero stress gradients. A spectral collocation method is used in order to solve for the axisymmetric steady-state solution of the full set of the governing equations. Two alternative continuum formulations are considered based on a single- and two-fluid concept, respectively.
scientific article; zbMATH DE number 474901
scientific article