36 #ifndef fvcDDt_subst_H
37 #define fvcDDt_subst_H
54 tmp<GeometricField<Type, fvPatchField, volMesh> >
DDt
57 const GeometricField<Type, fvPatchField, volMesh>&
61 tmp<GeometricField<Type, fvPatchField, volMesh> >
DDt
63 const tmp<surfaceScalarField>&,
64 const GeometricField<Type, fvPatchField, volMesh>&