non-Newtonian
Adjective
Meaning
non-Newtonian (not comparable)
Not Newtonian
Synonyms
Examples
For non-Newtonian liquids, the apparent viscosity is not true viscosity.
Rheology generally accounts for the behavior of non-Newtonian fluids, by characterizing the minimum number of functions that are needed to relate stresses with rate of change of strain or strain rates.
Some other non-Newtonian materials show the opposite behavior, rheopecty : viscosity going up with relative deformation, and are called shear thickening or dilatant materials.
The large class of fluids whose viscosity changes with the strain rate (the relative flow velocity ) are called non-Newtonian fluids.
The non-dimensional Deborah number is designed to account for the degree of non-Newtonian behaviour in a flow.
Non-Newtonian fluids have a more complicated, non-linear stress-strain behaviour.