Hello, how can I specify the
 

Hello,
how can I specify the density rho when I'm using the simpleFoam solver. I want to calculate water flowing through a pipe. I'm quite new to OpenFoam, I'm more used to Fluent.
When I would calculate the same Case in Fluent I would have to specify nu and rho.
My question is now:
Do I have to specify rho or is rho calculated by OpenFoam somehow ?

Regards,

Sebastian

There's not much in the FAQ, b
 

There's not much in the FAQ, but this is:
http://openfoamwiki.net/index.php/Main_FAQ#Where_do_I_enter_the_fluid-density_fo r_icoFoam.2C_turbFoam_and_other_incompressible_sol vers.3F

Thank you.
 

Thank you.

Sir, I am trying to simulate non-newtonian fluids in openfoam. I have used power law.
However, I am confused as in how to specify density as it varies fluid to fluid.