Fluid Mechanics defines a fluid as:
A substance which undergoes continuous deformation when subjected to a shear stress.
A fluid substance; a body whose particles move easily among themselves.
Fluid is a generic term, including liquids and gases as species.
Water, air, and steam are fluids-->Newtonian Fluid
The resistance to deformation offered by a fluid under a shear stress is called fluid viscosity. This is an important parameter to categorize the various types of fluids, or fluid models (for Fluid Mechanics calculations). The simplest fluid model is the perfect or ideal fluid. This model corresponds to a hypothetical gas or liquid that offers no resistance to shear, and thus has zero viscosity (an inviscid fluid). This model is sometimes used for real fluids with low viscosity.
Ideal Fluid (Perfect or inviscid fluid) - Hypothetical gas or liquid with zero viscosity
Newtonian Fluid - Fluid with a constant viscosity at a fixed temperature and pressure
Non-Newtonian Fluid - Viscosity is a function of shear stress
Subscribe to:
Post Comments (Atom)
1 comment:
Hello. This post is likeable, and your blog is very interesting, congratulations :-). I will add in my blogroll =). If possible gives a last there on my blog, it is about the Smartphone, I hope you enjoy. The address is http://smartphone-brasil.blogspot.com. A hug.
Post a Comment