OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › "WARNING: no discreteNormal is found " in the free energy model › Reply To: "WARNING: no discreteNormal is found " in the free energy model September 23, 2019 at 8:13 am #4550 zshi6193Participant Dear Sam, Thanks for your reply. I try to use “superGeometry.clean” and superGeometry.innerClean”. The same error comes out. But in fact, it seems this error doesn’t affect the results. Thanks Best regards, Simon.