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 › Velocity boundary conditions › Reply To: Velocity boundary conditions May 18, 2021 at 8:20 pm #5678 mathiasKeymaster You can see that in our multi-component examples. Best Mathias