How to get viscosity pure CO2

[Igor Marques]

Hi all,

I'm working with pure CO2 and I need the viscosity value to compute the Reynolds number.

I'm not founding in the documentation how to get viscosity values. Does anyone know how to get pure fluid viscosity?

BR,

Igor

[Bryan Weber]

Hi Igor,

The documentation is here: https://cantera.org/documentation/docs-2.6/sphinx/html/cython/transport.html#cantera.Transport.viscosity

and an example is here: https://cantera.org/examples/python/transport/multiprocessing_viscosity.py.html

Obviously, that's a Python example but you didn't specify which interface you're using. In any case, that shows you the right property to access on the Solution to get the viscosity.

Finally, since you mentioned "pure CO2", are you using the classes like ct.CarbonDioxide()? If so, those classes don't include transport data (except water), so you'll need to load a different input file that has transport property definitions for CO2. Generally, that will mean it will only be applicable for the gas phase.

Best,

Bryan

[Igor Marques]

Hi Bryan, 

I'm using python and ct.CarbonDioxide() classes for supercritical state. I'll find another file so. I appreciate it if you have any suggestions.

Thanks for the help.

BR

Igor