![]() ![]() Many of our spindles and measurement systems have known shear rate constants associated with them, which allow you to compare measurements of non-Newtonian fluids and characterize their behavior across a range of shear rates. When in doubt, it is always safer to assume your sample is non-Newtonian. Some common examples of non-Newtonian fluids includes mayonnaise, soaps, slurries, and many more. ![]() ![]() There are many more complicated behaviors, but that is beyond the scope of this article. The two most common behaviors exhibited by non-Newtonian fluids are shear-thinning, where the substance will decrease in viscosity as the shear forces on it increase, or shear-thickening where the viscosity increases as the shear forces on the fluid increase. Fluids can be very mildly non-Newtonian and barely change viscosity over a huge range of forces, or they can be severely non-Newtonian and change from free-flowing fluids to almost solid masses when mild forces are applied. Non-Newtonian fluids - Their apparent viscosity changes depending on the amount of shear applied, or how roughly or gently they are disturbed. ![]()
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