Does anyone know equations that can be used to equate fluid viscosity

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    Fluid Viscosity
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SUMMARY

The discussion centers on calculating fluid viscosity using the terminal velocity of a mass falling through a liquid. The key equation provided is derived from Stokes' Law, expressed as v_{t} = \frac{mg}{6\pi R\eta}, where v_{t} is the terminal velocity, m is the mass, g is the acceleration due to gravity, R is the radius of the sphere, and η represents the viscosity of the fluid. This equation allows for the determination of viscosity by measuring the terminal velocity of a sphere in a viscous medium.

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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
 
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tntcoder said:
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?
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
 

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