OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › [BlockGeometryStatistics3D] WARNING: no discreteNormal is found › Reply To: [BlockGeometryStatistics3D] WARNING: no discreteNormal is found January 17, 2022 at 7:32 am #6249 achodankarParticipant Hello Developers, The error shows up when I try to set the velocity and density values for the entry and exit nodes sLattice.defineU( superGeometry, 4, uF1); sLattice.defineRho( superGeometry, 3, rhoF1); Thank you. Yours sincerely, Abhijeet C.