[cojua8]

Hello,

I'm trying to build a volScalarField from a product of two scalarField

dimensionedScalar nu
(
    "nu",
    dimViscosity,
    transportProperties.lookup("nu")
);

dimensionedScalar rhoInfValue
(
    "rhoInf",
    dimDensity,
    transportProperties.lookup("rhoInf")
);

volScalarField mu
(
    IOobject
    (
        "mu",
        runTime.timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::AUTO_WRITE
    ),
    nu*rhoInfValue
);

but it doesn't work
is there any way to do this?

[alexeym]

Hi,

you are trying to make a volScalarField from a product of two dimensionedScalars. So you should use another constructor: this one. In terms of code it is:

volScalarField mu
(
    IOobject
    (
        "mu",
        runTime.timeName(),
        mesh,
        IOobject::NO_READ,
        IOobject::AUTO_WRITE
    ),
    mesh,
    nu*rhoInfValue
);