#Define viscosity free

Several factors can affect the viscosity of a substance. In other words, viscosity measures how hard it is to force a substance into motion. Viscosity is the measure of the resistance of a substance to motion under an applied force. What do they all mean, and why are they important to quality assurance testing?įirst off, let’s define viscosity in laymen’s terms: It's enough to make your head feel as thick as cookie dough. If you’re not already confused (good for you), read further into these definitions, and you’ll be confronted with a myriad of other terms – “rheology”, “shear rate”, “non-Newtonian fluid”, “thixotropy”, and “laminar flow”, to name just a few. Hawai’i Space Grant Program: Viscosity is an internal property of a fluid that offers resistance to flow.Symbol η See also kinematic viscosity, specific viscosity. It is measured in newton seconds per metre squared. Also called absolute viscosity a measure of this resistance, equal to the tangential stress on a liquid undergoing streamline flow divided by its velocity gradient.the extent to which a fluid resists a tendency to flow.

#Define viscosity free

The Free Dictionary: the state or property of being viscous.Wikipedia: The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress.Do an internet search for the term “viscosity”, and you’ll find a variety of definitions for the word.