Definition
In non-Newtonian fluids, the shear stress due to viscosity, is modeled by
where
- k is the consistency index
- n is the flow behavior index
- du/dy is the shear rate, with velocity u and position y
To ensure that has the same sign as du/dy, this is often written as
where the term
is defined as the apparent viscosity.
Read more about this topic: Apparent Viscosity
Famous quotes containing the word definition:
“The man who knows governments most completely is he who troubles himself least about a definition which shall give their essence. Enjoying an intimate acquaintance with all their particularities in turn, he would naturally regard an abstract conception in which these were unified as a thing more misleading than enlightening.”
—William James (1842–1910)
“One definition of man is “an intelligence served by organs.””
—Ralph Waldo Emerson (1803–1882)
“I’m beginning to think that the proper definition of “Man” is “an animal that writes letters.””
—Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)