What are the different types of fluid ?
The fluid may be classified into following five types :- Ideal fluid - A fluid, which is incompressible and is having no viscosity, is known as an ideal fluid. Ideal fluid is only an imaginary fluid as all the fluids, which exists, have some viscosity. Real fluid - A fluid, which passes viscosity, is known as real food. All the fluids, in actual practice, are real fluids. Newtonian fluid - A real fluid, in which the shear stress is proportional to the rate of shear strain or velocity gradient, is known as Newtonian fluid. Simply, we can say that the fluid which follows Newton's law of viscosity is called Newtonian fluid. Non-Newtonian fluid - A real fluid, in which shear stress is not proportional to the rate of shear strain or velocity gradient, is called Non-Newtonian fluid. They do not follow Newton's law of viscosity. Ideal plastic fluid - A fluid, in which shear stress is more than the yield value and shear stress is proportional to the rate of shear strain, is known as i...