Simplefoam with gravity
 

Hi all,

I am wondering how to implant gravity source into simpleFoam.In the latest version of OpenFOAM,I think I can manage to do this just use fvOptions but I am not sure.See more details in herehttp://www.openfoam.org/version2.1.0/numerics.php

So anyone can give me some clue about this?I think there are many ppls have done this.Thanks in advance!!!