... and non-Newtonian fluids in large scale systems. In other words, scaleup testing showed that existing models incorrectly predict results, and that experimental data are required to determine mass transfer coefficients for low superficial velocities or non-Newtonian fluids. Tests were performed...

...Evan Mitsoulis In a recent article ( Mitsoulis, 2007, “Annular Extrudate Swell of Newtonian Fluids: Effects of Compressibility and Slip at the Wall,” ASME J. Fluids Eng., 129, pp. 1384–1393 ), numerical simulations were undertaken for the benchmark problem of annular extrudate swell of Newtonian...

... is used to provide numerical results for different inner/outer diameter ratios κ under steady-state conditions for Newtonian fluids. The present results provide the shape of the extrudate, and, in particular, the thickness and diameter swells, as a function of the dimensionless compressibility and slip...