Newtonian and Non-Newtonian Fluids

 Newtonian and Non-Newtonian Fluids

A Newtonian fluid is a fluid in which the viscosity doesn’t change, no matter the amount of shear applied on it at a constant temperature. It has a linear relationship between viscosity and shear stress. Newtonian liquids are the least difficult numerical models of liquids that account for viscosity. While no real liquid fits the definition perfectly, numerous common fluids and gasses, such as water and air, can be accepted to be Newtonian for calculations under ordinary conditions. The few examples of  Newtonian Fluids are Gasoline, Alcohol and Oil.

Non-Newtonian is a fluid when the shear stress is applied on it, the viscosity of the fluid also changes. The behavior of the fluid can be described in four ways. In any case, non-Newtonian liquids are moderately common, and incorporate oobleck (which gets to be stiffer when vigorously sheared), or non-drip paint which gets to be thinner when sheared. Other illustrations incorporate numerous polymer arrangements which display the Weissenberg impact, liquid polymers, numerous solid suspensions, blood, and most profoundly viscous liquid. Dilatant, Quicksand, Pseudo plastic (The more the shear stress applied on the body the less will be the viscous it becomes),Corn flour and water are the examples for the Non-Newtonian fluids.


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    July 15-16, 2024

    5th European Congress on Laser, Optics and Photonics

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