OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › help me ! › Re: help me ! April 13, 2017 at 9:54 am #2591 mathiasKeymaster You actually can use any BC you want. For Bouzidi, the chance is not really complicated. Please, look at cylinder3d or our aorta3d example. Best mathias