OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Assigning Material Number For A Particle › Reply To: Assigning Material Number For A Particle January 28, 2023 at 7:40 am #7146 Henderson_CParticipant Dear Dr. Mathias, If I attend the spring workshop will I be able to solve my problem? The basics of the OpenLB software I genuinely understand thats why I am asking. Best regards,