https://doi.org/10.1351/goldbook.S05642
For a where , the shear component of rate of Corresponding relations hold for and ; is the component of stress acting in the -direction on a plate normal to the -axis; , , are the components of velocity.
Newtonian fluid
, the shear viscosity
is often termed simply viscosity
since in most situations it is the only one considered. It relates the shear components of stress and those of rate of strain
at a point in the fluid by: strain
is defined as follows: See also:
shear dependent viscosity