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 › Material number 0. › Re: Material number 0. August 10, 2016 at 12:38 pm #2418 aliiabMember Thanks, Robin! Now it works correctly.