Compare a newtonian fluid to a non-newtonian fluid.. how are they different?

Newtonian fluids have a constant viscosity that doesn’t change, no matter the pressure being applied to the fluid. This also means they don’t compress.

Non-Newtonian fluids are just the opposite — if enough force is applied to these fluids, their viscosity will change. These fluids are broken up into two categories — dilatants, which get thicker when force is applied, and pseudoplastics, which get thinner under the same circumstances.

These can be further broken down into rheopectic and thixotropic categories. Rheopectics work like dilatants in that they get thicker when force is applied. Thixotropic materials get thinner, like pseudoplastics do. The difference here is that the latter two categories are time dependant. The viscosity doesn’t change immediately but changes slowly over time as more and more force is applied.

Cite: Wesci.com

BY MEGAN RAY NICHOLS

Newtonian vs. Non-Newtonian Liquids

Explanation:

Hope this helps!

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