@allanZhong    2年过去了。。。是需要乘以体积。例如我刚写了个科氏力源项:
nergySource
{
    type            coded;
    selectionMode   all;
    field           U;
    codeInclude
    #{
    #};
    codeAddSup
    #{
        Pout<< "**codeAddSup**" << endl;
        const volVectorField& U = eqn.psi();
        vectorField& USource = eqn.source();
        vector omega(0, 0, 5e-5);
        const DimensionedField<scalar, volMesh>& V = mesh().V();
        USource += (2.0*omega)^U*V;
    #};
    codeAddRhoSup
    #{
        Pout<< "**codeAddRhoSup**" << endl;
    #};
    codeAddAlphaRhoSup
    #{
        Pout<< "**codeAddAlphaRhoSup**" << endl;
    #};
}