2Dimensional Work around for CHT Simulation in FMK

FMKFluid Dynamics Engineer 

Hi everyone,

I have Conjugate Heat Transfer case where the geometry in one of the X,Y,Z planes is so long it can be called "unending". So I am trying to set up a case where my focus has to be 2Dimensional (Lets say in XY Plane). Is it possible and how do i resolve the Meshing and boundaries(so there is gradient only in XY direction) in FMK? 

Can someone suggest any example case or comment on how to set it up?

Thank you