epäNewtonian
EpäNewtonian is a Finnish adjective used in scientific contexts to denote materials or fluids that do not follow Newton’s law of viscosity. In English the equivalent term is "non-Newtonian." The label is most commonly applied in rheology to describe fluids whose viscosity changes with applied shear rate or shear history, or that exhibit both viscous and elastic behavior.
Characteristics of epäNewtonian fluids include shear thinning (pseudoplasticity), shear thickening (dilatancy), viscoelasticity, thixotropy (time-dependent decrease in
EpäNewtonian behavior is modeled with constitutive equations such as power-law, Bingham plastic, Herschel–Bulkley, and viscoelastic models
Applications and considerations span food science, materials processing, pharmaceuticals, cosmetics, and civil engineering, where flow control,