open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,
I need to model open channels with baffles in different directions.
How I can model these baffles using Bluekenue and assigning them with different friction.
I know the part of the manual for adding bridge pier would not be a good way because piers are not submerged. But these baffles are submerged and should be meshed.

Thanks in advance,
Sanaz