Reply To: Not clear which version of Shan Chen model is implemented
Hi danial,
the division by the density is always needed, as it is once again multiplied by in the forcing scheme.
Please note, that the pseudopotential models as you mentioned are from different works and hence quite different. The old ShanChen model is using a ShanChen forcing scheme so it shows the relaxation frequencies omega at certain points. This makes the equilibrium depend on the relaxation time and therefore on viscosity which can be problematic as well as the old model only provides low density ratios.
The model used in MCMPForcedPostProcessor is using a Guo forcing scheme and has conservation laws to determine total densities and shared velocities.
Kind regards
Tim