New to LBM and OpenLB? Attend our upcoming one-week hands-on Spring School in Heidelberg/Germany in March 2024 OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Defining Material Numbers › Reply To: Defining Material Numbers June 17, 2020 at 9:46 pm #5034 mathiasKeymaster https://www.openlb.net/DoxyGen/html/index.html