New to LBM and OpenLB? Attend our upcoming one-week hands-on Spring School in Marseille/France from 19.05.2025 – 23.05.2025. OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Cylinder2D study › Reply To: Cylinder2D study February 2, 2023 at 10:35 am #7165 FBukreevKeymaster You mast use the AnalyticalConst2D instead of a normal variable