Fluid Properties:
Dynamic Viscosity
SYMBOL:
m
DEFINITION:
Shear stress (t) in a Newtonian fluid is
linearly proportional to the time rate of angular strain (dV/dy).
The dynamic viscosity (m) is the coefficient
of proportionality so that
t = m (dV/dy)
Unlike a solid, a fluid deforms continuously under the action of a shear
stress. A non-Newtonian fluid is a fluid where the shear stress is not
linearly proportional to the rate-of-strain.
UNITS (SI):
Pa s
CHARACTERISTICS:
Return to Viscosity