WHAT ARE NEWTONIAN AND NON-NEWTONIAN FLUIDS?
Newtonian fluid, non Newtonian fluid, rheopectic, thixotropic, dilatant... what's the difference between these liquid properties? More importantly, what does it matter? One thing is clear and easy to understand. Newton the great is behind Newtonian fluid, non Newtonian fluid. NEWTONIAN FLUIDS A Newtonian fluid's viscosity remains constant, no matter the amount of shear applied for a constant temperature. These fluids have a linear relationship between viscosity and shear stress. Examples: Water Mineral oil Gasoline Alcohol NON-NEWTONIAN FLUIDS You can probably guess that non-Newtonian fluids are the opposite of Newtonian fluids. When shear is applied, the viscosity of non-Newtonian fluids decreases or increases, depending on the fluid. The behavior of the fluid can be described in one of four ways: Dilatant - Viscosity of the fluid increases when shear is applied. For example: Quicksand Cornflour and water Silly putty Pseudoplastic - Pseudoplastic...