OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Periodic boundary › Reply To: Periodic boundary June 4, 2021 at 8:52 am #5702 AdrianKeymaster Yes, the periodicity in OpenLB is configured via CuboidGeometry::setPeriodicity. In 2D setPeriodicity(true, true) does what you want.