dimensionedScalar rhog("rhog", dimDensity, transportProperties)
IOdictionary transportProperties(IOobject("transportProperties", runTime.constant(), mesh, IOobject::MUST_READ, IOobject::NO_WRITE))
dimensionedScalar mug("mug", dimViscosity, transportProperties)
dimensionedScalar rhol("rhol", dimDensity, transportProperties)
dimensionedScalar mul("mul", dimViscosity, transportProperties)