THE viscosity of liquids is a subject which, so far as I know, has hitherto been without any general theoretical basis. No physical mechanism, for example, has ever been brought forward to account ...

Imagine a styrofoam cup with a hole in the bottom. If I then pour honey into the cup I will find that the cup drains very slowly. That is because honey's viscosity is large compared to other liquids' ...

This attractive force is strong enough to reduce the bulk velocity of the fluid to zero ... Within the boundary layer, adjacent layers of fluid are in relative motion, and because all fluids have ...

But there's more too it than that! We'll start by defining viscosity using Newton's Law of Viscosity, that describes the linear relationship between the shear stress in the fluid and the strain rate, ...

Common fluids, like water, have a consistent viscosity, so they flow the same regardless of what force you apply. In Non-Newtonian fluids, viscosity can change. Apply a sudden force, and the ...