Newtonian Fluids in Piping System

A Newtonian fluid is defined as one with constant viscosity, with zero shear rate at zero shear stress, that is, the shear rate is directly proportional to the shear stress. From: Biomaterials, Artificial Organs and Tissue Engineering, 2005.1 Such as water or oil, are characterized by a viscosity (i. e. the ratio between shear stress and shear rate) that is independent of shear rate. These fluids display a linear relation between shear stress and shear rate. In this study two different Newtonian fluid systems ( water and water+50 % Ethanol) were used with different physical properties. Friction and pressure losses were measured and compared at constant temperature 250 C (298K). Both solutions were homogeneous.