OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › Bug Reports › magneticParticles3d › Reply To: magneticParticles3d April 26, 2020 at 7:40 pm #4936 mathiasKeymaster That is related to Bouzid BC. It sets Bounce Back instead. Therefore, it is working. We will fix that minor bug in the next release. Best Mathias