Hi all,
I'm trying to implement outflow boundary conditions for a turbulent plume using a sponge layer to absorb the energy of the flow and prevent reflections back into the domain. I was wondering whether there is anything set up in Nek already to construct this sponge layer or if it's something I need to do myself, and if so whether anybody could help with something they've done before - I've read a couple of other threads here that mention a sponge layer but not its implementation.
I look forward to hearing from you.
Best,
Daniel Ward