• Physical properties of both phases are set in constant/transportProperties file:

   

phases ( water oir);

water
{
    transportModel  Newtonian;
    nu              1e-4;
    rho             1000;
}

oir
{
    transportModel  Newtonian;
    nu              1e-4;
    rho             500;
}

sigma           0.05;

• Each phase is specified in file constant/transportProperties

   

• Section water parameters are of the first phase, section oir parameters are of the second phase

   

• For Newtonian fluid we need to set kinematic viscosity and density

   

• Parameter sigma is friction coefficient between both phases