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Viscosity

 
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Feb20-05, 05:27 PM   #1
 

Viscosity


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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Feb20-05, 07:50 PM   #2
 
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Quote by 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?
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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