Real fluid:- The fluids in reality have viscosity m > 0 hence they are termed as real fluids and their motion is known as viscous flow. (ex) Air , water, kerosene, blood, milk .
Newtonian fluid :- The fluids, which obey Newton’s law of viscosity are known as Newtonian fluids. For these fluids, there is a linear relationship between shear stress and velocity gradient. (ex) Air, water, kerosene.
Rheopectic fluid :- If the viscosity decreases with time the fluid is said to be Rheopectic fluid. (ex) gypsum suspension, bentonite clay solution.
Newtonian fluid :- The fluids, which obey Newton’s law of viscosity are known as Newtonian fluids. For these fluids, there is a linear relationship between shear stress and velocity gradient. (ex) Air, water, kerosene.
Tthyxotropic fluid:- If the viscosity increases with time the fluid is said to be a Thyxotropic fluid. (ex) Lipstick, paints enamels, crude oil.
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