Relative Viscosity

on . Posted in Fluid Dynamics

Relative viscosity, abbreviated \(\eta_r\), is the ratio of the viscosity of a solution to the viscosity of a solution used.

 

Relative Viscosity formula

\( \eta_r = \eta \;/\; \eta_s \) 
Symbol English Metric
\( \eta_r \)  (Greek symbol eta) = relative viscosity \(lbf - sec \;/\; ft^2\)  \(Pa-s\) 
\( \eta \)  (Greek symbol eta) = viscosity of a solution \(lbf - sec \;/\; ft^2\) \(Pa-s\)
\( \eta_s \)  (Greek symbol eta) = viscosity of a solution used \(lbf - sec \;/\; ft^2\) \(Pa-s\)

 

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Tags: Viscosity