Viscosity

tntcoder

Does anyone know equations that can be used to equate fluid viscosity using the terminal velocity of a mass falling down a tube of that liquid?

Thanks

Andrew Mason

Try this equation for terminal velocity of a falling sphere of radius R:

[tex]v_{t} = \frac{mg}{6\pi R\eta}[/tex]

where [itex]\eta[/itex] is the viscosity of the fluid. This is derived from Stokes' Law.

AM