Difference between Molecular & Dynamic Viscosity?
 

Hi everyone,

Sorry if this has been posted before, but I wasn't able to find anything in the forums.

I'm curently simulating the effect of the shear rate inside a 4L reactor on my shear-thinning fluid. I'm using the Multiple Reference Frame model and monitoring the volume average of the Strain Rate on FLUENT as a report variable/plot.

I noticed however that Molecular Viscosity is also one of the report variables available. What is the difference between this and Dynamic Viscosity? I couldn't seem to find anything on the manual nor on Google.

Are they the same? If not, is there a correlation between them?
Also, is there a way to make Dynamic Viscosity a report variable? It's only available on CFD Post, it seems.

Thank you!

Molecular viscosity is more popularly called the kinematic viscosity. Kinematic/molecular viscosity (greek letter nu) differs from the dynamic viscosity (greek letter mu) by a factor of the density for normal fluids. For nerdy details, see the Wiki on viscosity.