I am a complete newbie to LBM and OpenLB. I wonder if anybody can tell me how difficult --if possible at all-- it would be to set up a 2d wave propagation problem with initial condition for the waves in openLB. To simplify the problem, Shallow-Water waves can be assumed.
A Shallow-Water model is currently not implemented. But the implemented fluid models are weakly compressible and are able to model density fluctuations which propagate according to a wave equation. By digging through the literature you should be able to find corresponding papers.