دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a fluid in which the viscosity remains constant for all rates of shear if constant conditions of temperature and pressure are maintained. Most drilling fluids behave as non-Newtonian fluids, as their viscosity is not constant but varies with the rate of shear.

n: the basic and wsimplest fluids from the standpoint of viscosity consideration in which the shear force is directly proportional to the shear rate. These fluids will immediately begine to move when a pressure or force in excess of zero is applied. examples

a fluid whose shear force and response is directly proportional to shear rate. Yield point is zero.