Good afternoon sir,
I am doing three dimensional cavity problem using OpenFOAM. Mostly I learned from Spoken Tutorials, I am so grateful to you. I kept a rectangular box( fin) inside the cube using blockMesh, which works using icoFoam, as my problem is related to heat transfer, when i put the geometry in buoyantBoussinesqSimpleFoam i am getting errors,
--> FOAM FATAL IO ERROR:
keyword smoother is undefined in dictionary ""

file:

    From function const Foam::entry& Foam::dictionary::lookupEntry(const Foam::word&, bool, bool) const
    in file db/dictionary/dictionary.C at line 441.

FOAM exiting.
I was trying to change solvers, smoothers and preconditioners. etc. But i could not. Please help me.
Or
Is there any other method available ?