Non-Newtonian Fluids

Abstract

Non-Newtonian fluids are those which exhibit inconstant viscosity and do not follow Newton's law, whereby their viscosity varies either with the duration or the rate of shear. The viscosity of non-Newtonian fluids is therefore, an essential property to be considered while selecting approprate equipment or unit operation in industrial processes. This manuscript presents an overview of the definition and types of non-Newtonian fluids as well as the methods for studying flow properties of such fluids. An example of the calculation of agitation power required for non-Newtonian fluids are illustrated.