diff --git a/lbmpy/forcemodels.py b/lbmpy/forcemodels.py index dd3296fd97e8477f1ff309dac30f05ea0151b653..10eab7670e49212317d071c43874c63988031cde 100644 --- a/lbmpy/forcemodels.py +++ b/lbmpy/forcemodels.py @@ -445,12 +445,16 @@ class EDM(AbstractForceModel): def __call__(self, lb_method): cqc = lb_method.conserved_quantity_computation - rho = cqc.density_symbol if cqc.compressible else 1 + reference_density = cqc.density_symbol if cqc.compressible else 1 + rho = cqc.density_symbol + delta_rho = cqc.density_deviation_symbol + rho_0 = cqc.background_density u = cqc.velocity_symbols equilibrium_terms = lb_method.get_equilibrium_terms() + equilibrium_terms = equilibrium_terms.subs({delta_rho: rho - rho_0}) - shifted_u = (u_i + f_i / rho for u_i, f_i in zip(u, self._force)) + shifted_u = (u_i + f_i / reference_density for u_i, f_i in zip(u, self._force)) shifted_eq = equilibrium_terms.subs({u_i: su_i for u_i, su_i in zip(u, shifted_u)}) return shifted_eq - equilibrium_terms