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 › Importing stl in FreesurfaceBreakingDam model. › Reply To: Importing stl in FreesurfaceBreakingDam model. August 19, 2024 at 2:21 pm #9117 AdrianKeymaster Ok, so you should take a closer look at your geometry setup in the prepareGeometry function.