[shuoxue]

The version of my OpenFOAM is 2.2.0.
ViscosityModels in transportProperties dictionary are listed as follows:
1.png

Q1: For Newtonian method, we only specify keyword nu for incompressible problems, nu and rho for multiphase problems. Is that correct?

Q2: What method do CrossPowerLaw, BirdCarreau, HerschelBulkley, powerLaw represent? What kind of entries we should specify for each of them?

Thanks in advance.

[nimasam]

Originally Posted by shuoxue

Q1: For Newtonian method, we only specify keyword nu for incompressible problems, nu and rho for multiphase problems. Is that correct?

you are right.

Q2: What method do CrossPowerLaw, BirdCarreau, HerschelBulkley, powerLaw represent? What kind of entries we should specify for each of them?

they are for non-Newtonian fluid, you need just to search for them in wiki for example for powerlaw, look here
or you can see the sourofce code to see how this equation has been implemented
and if you look in tutorial more carefully, you can find in some examples how their entries are, for example here:

tutorials/multiphase/interFoam/laminar/damBreak/constant/transportProperties