Power law consistency index value? Conversion?


#1

Hello,
I’m need to make sure that I’m inputting the correct value in the power law consistency index value field. I have these values for my materials but they are in SI units of Pa s^n and I’m unsure whether these values can be converted into the m^2/s. I would greatly appreciate any info related to this conversion.
Thanks for your help.
Keith


#2

Hi,

the unit of the dynamic viscosity is Pa \bullet s. The unit of the kinematic viscosity is \frac{m^2}{s}.

The coefficient connecting both is the density \rho.

\rightarrow \eta = \nu \bullet \rho or in units

\rightarrow [\eta] = \frac{N \bullet s}{m^2} = \frac{kg}{m\bullet s} = 1Pa \bullet s

Is that what you were looking for?

Cheers,

Jousef