Do we have comsol model that simulates placement of barriers in windings - oil cooling of power transformer?

Hi,

I am looking out a design model that talks about optimal placement of barriers in windings of a power transformer to design the oil flow through the discs. Wanted to know how to simulate the oil flow in windings and then insert barriers and see the hot spot temperature. Vary the barriers placement position and compare the results.

Thanks for the quick help.
Sireesha