Reply To: Not clear which version of Shan Chen model is implemented
You are correct, the Guo forcing was chosen which does not work in this case as the coupling strictly requires Shan Chen forcing as there is no force to add after the averaging of velocities.
In the next OpenLB release, there will probably be a Shan-Chen-like model that uses Guo forcing instead of Shan Chen forcing. For now, it would be easiest to change the dynamics from “ForcedBGKdynamics” to “ForcedShanChenBGKdynamics” in the Rayleigh Taylor cases.
Tim