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:
“I’m beginning to think that the proper definition of “Man” is “an animal that writes letters.””
—Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)
“The physicians say, they are not materialists; but they are:MSpirit is matter reduced to an extreme thinness: O so thin!—But the definition of spiritual should be, that which is its own evidence. What notions do they attach to love! what to religion! One would not willingly pronounce these words in their hearing, and give them the occasion to profane them.”
—Ralph Waldo Emerson (1803–1882)
“Perhaps the best definition of progress would be the continuing efforts of men and women to narrow the gap between the convenience of the powers that be and the unwritten charter.”
—Nadine Gordimer (b. 1923)